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414416fd0265c0d7c3f713fd71ce156a | two particles are performing simple harmonic motion in a straight line about the same equilibrium point. the amplitude and time period for both particles are same and equal to a and t, respectively. at time t=0 one particle has displacement a while the other one has displacement 2 a − and they are moving towards each other. if they cross each other at time t, then t is : | askiitians.com | 2021.25 | [
{
"text": "after t/4 time both the particle will be at same position . they meet at the mean position. this is because both the particle have same amplitude and time period and at t=0 they are at opposite extremes so it takes t/4 time to reach the mean position",
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6e514f1afdfb7259ae2405912b5fad2e | a horizontal turntable at an industrial plant is continuously fed parts into a slot (shown on the left). it then drops these parts into a basket (shown on the right). the turntable is rotating with a constant angular velocity w. there is negligible friction between the parts and slots. the parts exit the slots with a radial velocity ve relative to the turntable. what is the acceleration of the parts at radius r1 and r2? | askiitians.com | 2021.43 | [
{
"text": "thanks & regards, nirmal singh askiitians faculty",
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b9a5ef71de7b2fdee084c4c753d15f1d | in this question which form of identy we use-> identity a square – b sqaure or (a+b) (a-b) question is in this form 107x93 | askiitians.com | 2021.39 | [
{
"text": "(a+b) (a-b)",
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802d5fea9076e6d7c906bf9c86d05eda | sir , my aieee forth round seat alloted in kalinga institute at e.t.c. branch . sir i apply to fifth round conselling .i want to any nit in any branch. please tell me about kalinga university and its placements. | askiitians.com | 2021.25 | [
{
"text": "hi, kalinga university is a reputed university and your branch is also ver good.you may get a better college in next round but you can also take admission in kalinga. kiit university (earlier kalinga institute of industrial technology ) ( hindi : ????? ??????????? ?? ??????????? ?????????? , ipa : [kali?ga i?sticyut oph i??astriyal teknolaji]) is a co-educational, autonomous university located at bhubaneswar in the indian state of orissa. it was one of the youngest institutions to be awarded the deemed university status in india and then the university status in 2004 and is recognised by limca book of records. the university offers under-graduate and post-graduate courses in engineering, bio-technology , management, law, computer application , rural management, fashion, film studies , journalism and sculpturing. it has been ranked as 16 th in india, 5 th among private universities, and 4 th in the eastern region in the year 2009 by times of india . it has also been ranked 18 th among private engineering institutes and 7 th in placement in 2008 by outlook india . kiit school of management has been nominated as the mentor institution by aicte for conducting faculty development programme in eastern india. kiit was established in 1992 as an industrial training institute with only 12 students and 2 faculties. this institution was the brainchild of pradyumna bal , dr.achyuta samanta, dr p.k mishra and dr c.r mishra who had together envisioned a profound center of learning in india and so pursued to lay the foundation of kiit. in 1997, the school of technology and the school of computer application was established. in 2004 it was conferred the status of university, becoming the youngest institute to get university status in india and entered the limca book of records. school of biotechnology, school of rural management, school of medicine and kiit law school were started in 2007. in 2009 five new schools, school of mass communication, school of design, school of film studies school of tourism and hospitality management and school of sculpture has been established. currently more than 12000 students are enrolled in various courses of the university. placement kiit university has achieved record placement in all streams for its graduates passing out in 2009. this is a repeat of performance from last many years showing that kiit students enjoy special preference of recruiters. it is incredible that kiit has been able to place almost all its graduates comfortably and gainfully through campus placement at a time when global recession has dampened the job prospect across most campuses in india and globe. campus placement organized in different schools of kiit university - school of technology (b.tech and m.tech), school of management (mba), school of rural management (mba in rural management), school of computer application (mca) and school of biotechnology (m.sc. in biotechnology) - was beyond all expectations. “there is no recession in kiit; we are preferred for its brand”, quipped a jubilant b.tech student, who bagged offer letter from tata consultancy service (tcs), summing up upbeat mood of the students. the school of technology has recorded 92% placement, with 345 students bagging offer letters from tcs alone. the achievement is effectively cent percent as the remaining 8% students opted out of campus placement to pursue higher studies or join the family business. these include more than 50 students who have already qualified for higher studies in iits, iims, iisc and foreign universities. the school of technology traditionally enjoys the best placement among all schools of kiit university. this time total 60 companies, including tcs, wipro, infosys, ibm, vedanta and shapoorji, participated in the campus recruitment programme. the highest pay of rs. 6.5 lac p.a. was offered by tata steel, while the average salary was rs. 4.2 lac p.a.. even the school of computer application recorded 80% placement, despite the fact that it sector has been one of the worst hit by ongoing global economic meltdown. the school of management also scripted a cent percent record with 40 companies, including hdfc bank, tcs, hcl, axis bank, sidbi, nestle, etc., participating in the on-campus placement exercise. average pay offered was rs. 4.5 lac. school of biotechnology and school of rural management, two new schools founded in 2007, surprised the academicians with the overwhelming response of companies for its 1st batch of students. despite the fact that campus placement of biotechnology graduates in the country does not take place in a big way, the school of biotechnology of kiit university attracted 16 reputed corporate names for msc (biotechnology) graduates , thanks to the efforts by dr. mrutyunjay suar, its director. these companies include intas biopharmaceuticals, ils, excel life sciences, cryo-save and mahyco. similarly, total 20 companies recruited from the school of rural management , functioning under dynamic leadership of dr. l. k. vaswani. shri n. v. shastry, dy director - placement, kiit university attributed the excellent placement to high quality of students and performance of its alumni. kiit’s unique focus on overall development of its students and brand building helped its students to beat recession, said dr. a. samanta, founder of kiit group of institutions. while the global recession is likely to deepen in 2010, academicians have expressed hope that students of kiit will not have problem in getting placed due to the excellent inputs and brand name of the institute.",
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bdd9b1ae7480dcfb6ea4d2687caf062a | how good placement of ddit and nirma for ec branch? | askiitians.com | 2021.43 | [
{
"text": "placement of nirma univ is good for ec followed by ddit. it is 20 % core + 35 % in it firms..",
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d38dc4de4bc5f058eee2ba7d266d37c6 | how many mole of electron weigh 1 kilogram plz explain answer | askiitians.com | 2021.39 | [
{
"text": "the number of moles of electron that weights 1kg is10^8 / 9.1×6.02×10^23or1/ 9.1×10^-31 × 6.02×10^23",
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4b71d4e1af2e80193505d08e136c1217 | solve this question................................. | askiitians.com | 2021.21 | [
{
"text": "answer is a) 306 225 +81=306 = 2 +9 2 169 +64 =233 ,(6+9) = 2 +8 2 =81+49 =130 ,(5+8) 2 +7 2 49+16=65 , (2+7) 2 = 2 + 4 (3+4)",
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"text": "(2 + 7)² + 7² = 81 + 49 = 130 (3 + 4)² + 4² = 49 + 16 = 65 (5 + 8)² + 8² = 169 + 64 = 233 (6 + 9)² + 9² = 225 + 81 = 306 ans. is a. 306",
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60ffa1e771a212d7b8bcff94601945d0 | the output of an or gate is connected to both the inputs of a nand gate. the combination will serve as a | askiitians.com | 2021.25 | [
{
"text": "dear student the answer is option nor gate regards",
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fe5ecfcd1c93ac371d50a7f890999ad1 | explain why a wheel rolling on a flat horizontal surface cannot be slowed down by static friction. assuming no slipping, what does slow the wheel down? | askiitians.com | 2021.31 | [
{
"text": "staic means at rest.static friction acts only when the bodies are at rest. rolling friction can slow down a wheel during its rolling.",
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"text": "static friction is responsible for producing the turning effect in the wheel or otherwise the wheel would slide. in presence of the static friction, the velocity of the point in contact with the ground is v = rω .also, the translational motion of the wheel, gives each point a velocity of v cm . when the velocity due to translational motion of wheel, at the point of contact with the ground, is equal to tangential velocity at that point, then the wheel rolls without slipping. therefore one can see that the frictional force is responsible for slowing down the wheel, but bringing the point of contact instantaneously at rest. it is the rolling friction which is responsible for slowing the wheel. the deformation in the shape of the surface over which the wheel is rolled generates a reaction force. this force has two components, one of which is in a direction opposite to the translational motion of wheel. therefore the component of the reaction force is responsible for slowing wheel down.",
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17f7714b8eb1908f52f009fb2c3e0ab6 | why does the ice floats?(attach image for better understanding) | askiitians.com | 2021.21 | [
{
"text": "dear aditya ice floats on water because density of ice is less than water. in common language we can say ice floats on water because it is lighter than water. any solid when place in a liquid buoyancy force that is equal to the weight of volume of liquid displaced by it. an object with density less than that of the liquid is able to displace volume of water that is less than volume of the object. as a result such object floats on the liquid. a solid, which has higher density than the liquid, displaces volume of liquid which is equal to the volume of the solid. but the buoyancy force exerted on the solid by this is less than the downward gravitational force acting on the solid because of its weight. as a result the solid sinks to the bottom. a solid with density exactly equal to the liquid will be able to remain suspended any where within the liquid, without rising to the top of the liquid or sinking to the bottom. while on this subject, it is worthwhile explaining the phenomenon which makes ice lighter than water. all solids and liquids including water expand when heated and shrink when cooled. as a result, density of any substance is higher at lower temperature. however, water between temperature 0 degrees to 4 degrees centigrade presents an exception to this universal rule. in this temperature range, water expands when cooled. as a result the density of water at 0 degrees as well as that of ice at 0 degrees is lower than the water. regards arun (askiitians forum expert)",
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74bb0ff76f3e3b86142eb42c5b617641 | 31/3 . 91/9 . 271/27 . 811/ 81…..upto infinity = (a)√27 (b)3√27 © 4√27 (d)none of these | askiitians.com | 2021.43 | [
{
"text": "the ans is (d)none of these reson ::: the geneal term of series is << 10 + (1/3) n >> as n -> infinity, (1/3) n -> 0 as the series doesnot have product of 10 in denominator, the product of series shuld have multiple of 10 in ans hence it is (d)",
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"text": "but ans. is (c)..",
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848537135140113b247ab8dfc3e025c8 | dear sir , i have got a total of 58 marks(p-23,c-21,m-13) in iit-jee 2010 and i belong to st catogry.do i have got any chances in preparatory course list of iit-jee2010...........????? is preparatory course list comes main merit list of iit-jee 2010? last year cut-off for preparatory course for st catogry was around 40.can you tell me what is the minimum cut-off for this year? please do reply immediately......................... | askiitians.com | 2021.21 | [
{
"text": "dear xyz123 singh, actually the cut off may vary form year to year so dont bother about the last year cut off's and when we given jee that time they used to give if u get preparatory course means then you will get the information in the declaration of results day only i mean if u type ur registration num then it will say that you havnt qualified but you got preparatory course like that but one year it was goven a separate list after declaration of results so please wait for some more days to see the preparatory course results and as u said last years cut off u may get also so wait for some more days.. please feel free to post as many doubts on our discussion forum as you can. if you find any question difficult to understand - post it here and we will get you the answer and detailed solution very quickly. we are all iitians and here to help you in your iit jee & aieee preparation. all the best.. regards, kishore-iit bombay",
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6294d7eb76731628841f9d9d95c8505a | limit 2-√3cosx-sinx /( 6x-pie )^2x tends to pie /6 | askiitians.com | 2021.21 | [
{
"text": "",
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{
"text": "nope your answer wrong nope",
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{
"text": "sorry in 2 nd step while we differentiate there will be 6 in denomenator so answer will be 1/36",
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"text": "thanks. sir thanks a lot.",
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5fa2307eb566709f8a9b9a4a0a560cc9 | from which book i study stoichiometry as my knowelege abut it is not clear and i am having o.p.tandon -phy.chem | askiitians.com | 2021.39 | [
{
"text": "dear shubham, o.p tandon physical chemistry is great book. you must use it. in case you still face peoblem, then you shoul d refer mc murry fay or university chemistry",
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a09389572633c81e547fe92eae9b7764 | please provide a detailed solution for this question.lts 18/12. | askiitians.com | 2021.31 | [
{
"text": "in rutherford model electron follow spiral path.because according to rutherford theory energy loses gragually thus it(electron) traces spiral....",
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7c1a63d0b631464f32fdbf1dff59c646 | it - bhu - mettalurgical or ism dhanbad - industrial for mtech . i am gate qualified with 446/1000 score and want to join industries after m.tech | askiitians.com | 2021.39 | [
{
"text": "dear student, go for it bhu - metallurgical... please feel free to ask your queries here. we are all iitians and here to help you in your iit jee preparation. all the best. win exciting gifts by answering the questions on discussion forum. so help discuss any query on askiitians forum and become an elite expert league askiitian. now you score 5+15 points by uploading your pic and downloading the askiitians toolbar respectively : click here to download the toolbar.. askiitians expert sagar singh b.tech, iit delhi",
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9a63532bca8ca0283caf90211983aa4a | a ball dropped from a point p crosses a point q in t seconds.the time taken by it to travel from q to r, if p q=qr a)t. b)2t. c)(root 2-1)t i want procedure | askiitians.com | 2021.25 | [
{
"text": "when ball dropped from a point p crosses a point q in t seconds, let pq = qr = x then, x = 0 + 0.5gt^2.........................(1) and also final speed would become as: v = 0 + gt.....................................(2) for qr, x = vt’ + 0.5gt’^2 from eqns. (1) and (2) we get, 0.5gt^2 = gtt’ + 0.5gt’^2 hence it is quadatic keeping t constant find t’.",
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c5501862f84cb2aed67726647c4e0de9 | sir,i am from nepal i want to prepare for iit .what should i do?? | askiitians.com | 2021.25 | [
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"text": "you can join askiitians because you can take classes from your home you dont need to go outside to take classes please do visit our site once or drop your email here for more information",
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7b76bd7f93cc54ded6f76abc6fae0100 | a bar magnet of magnetic moment 2a-m 2 is kept such that its north pole faces the earth's geographical east and its west faces the geographical west. if the horizontal component of earth's magnetic field is 20 microtesla, find the position of neutral point. | askiitians.com | 2021.43 | [
{
"text": "dear hinan, b h = (μ 0 /4π)*m*(3cos 2 θ -1)/l 3 b is the magnetic field, in teslas, at any point in space that isn't at the origin. it is equal to the sum of two field components, b x the magnetic field component which is aligned with the x axis and b r the magnetic field component which is in a radial direction. x is the distance, on axis, from the dipole to the field measurement point, in meters. l is the distance from the dipole to the field measurement point, in meters. q is angle between the dipole axis, and the position vector of the field measurement point. given that horizontal component of the field is 20 micro tesla and we know the dip of the earths magnetic field as 11.5 0 thus tan 11.5 0 = b earth horizontal/b earth vertical ð b earth vertical = 98.303 micro tesla ð and the neutral point will be observed on the axis of the dipole which implies θ = 0 and thus 20*10^-6 tesla = 10^-7 * 2*2/ l 3 ð l = 0.271 m please feel free to post as many doubts on our discussion forum as you can. if you find any question difficult to understand - post it here and we will get you the answer and detailed solution very quickly. we are all iitians and here to help you in your iit jee preparation. all the best !!! regards, askiitians experts adapa bharath",
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5880d16712498cbf755f9bacc9195181 | integration of sin^6x/cos^8x dx please solve this question fast | askiitians.com | 2021.25 | [
{
"text": "this is very ez to do. sin^6x/cos^8x= (sin^6x/cos^6x)*sec^2x= tan^6x*sec^2x now substitute tanx=y or dy= sec^2x dx so that ∫sin^6x/cos^8x dx = ∫tan^6x*sec^2x dx= ∫y^6 dy= y^7/7+c = tan^7x/7 + c",
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75b45e61de253d53b3ed4d3ec756fb80 | when the light ray is refracted through through a spherical surface ie concave surface .. what is the nature of the image formed,,,means real or virtual or always real or always virtual | askiitians.com | 2021.31 | [
{
"text": "virtual but not always",
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8ba62598a722da2a41976e99048e6c83 | can you please send me the solution for my question? my question is: simlified floating multiplier in verilog many thanks | askiitians.com | 2021.25 | [
{
"text": "hii the question is not proper. resubmit the question properly and we will get back to you. thanks. . . . . . . . . . . . . . . . . . . . . . .",
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a5eaf31bf067ed98a21d32b8bac5627a | what is meant by allied angles ? explain. ...................... | askiitians.com | 2021.43 | [
{
"text": "allied (or co-interior) angles are supplementary.if two parallel lines are cut by a transversal .the angles formed: z and x (or u and v) are alternate angles . x and y are corresponding angles . u and x (or z and v) are called as allied (or co-interior) angles .",
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"text": "allied angle is an angle pair, which is created by transversal line. now question arises what are allied angles? we assume a transversal line gh, which intersect two straight lines pq and rs and create 8 angles on both straight line pq and rs:",
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"text": "when two parallel lines are cut by a transversal, the interior opposite angles on the same side of the transversal are called allied or co-interior angles.",
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75152a828911d7766bda09c889e3f5a3 | prove that -2a a+b a+c b+a -2b b+c =4(a+b)(b+c)(a+c) a+c b+c -2c | askiitians.com | 2021.39 | [
{
"text": "the format is a bit unclear, but it would appear that the determinant is -2a*((-2b)*(-2c) - (b + c)^2) + (a + b)*((b+c)*(a+c) - (b+a)*(-2c)) + (a+c)*((b+a)*(b+c) - (-2b)*(a+c)) = -2a*(4bc - (b^2 + 2bc + c^2)) + (a+b)*(ba + bc + ca + c^2 + 2bc + 2ac) + (a+c)*(b^2 + bc + ab + ac + 2ba + 2bc) = -2a*(2bc - b^2 - c^2) + (a+b)*(ba + 3bc + 3ac + c^2) + (a+c)*(b^2 + 3bc + 3ab + ac) = -4abc + 2a*b^2 + 2a*c^2 + b*a^2 + 3abc + 3c*a^2 + a*c^2 + a*b^2 + 3c*b^2 + 3abc + b*c^2 + a*b^2 + 3abc + 3b*a^2 + c*a^2 + c*b^2 + 3b*c^2 + 3abc + a*c^2 = 8abc + 4a*b^2 +4a*c^2 + 4b*a^2 + 4c*a^2 + 4c*b^2 + 4b*c^2 = 4*(2abc + a*(b^2 + c^2) + b*(a^2 + c^2) + c*(a^2 + b^2)). 4(a+b)(b+c)(a+c) approve plz!",
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01d14f1067e48897461af91d22a2d7ad | the ratio of the speed of the electron in ground state of hydrogen atom to the speed of light in vaccum is- 1. ½ 2. 2/237 3. 1/137 4. 1/237 | askiitians.com | 2021.39 | [
{
"text": "from the derivation of velocity of a electron in class 12 th ncert its know that velocity of electron in ground state of an hydrogen atom is 1/137 go thru your ncert text book for further clearance hence option 3 is correct i reccomend you to go thru your ncert textbook",
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94fa3fc3661e1693ccb300a98ebb4a7d | please explain fully …...please …...hey image attached please tell the method which is used in solution …..please sir .maam …..please anyone …... | askiitians.com | 2021.43 | [
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"text": "[x] implies the greatest integer that is less than or equal to x. clearly [x] is 0 if x lies between 0 and 1 (exclusive) and [x] = 1 if x lies between 1 (inclusive) and 2 (exclusive) in this case, the r th term is this will be equal to zero till the value inside is atleast 1. note that the last term is [3/4 + 99/100] = [1.74] = 1. so every term will equal 1, starting from the term where 3/4+ (r-1)/100 = 1 thus from r = 26, to r = 100, each term evaluates to 1. so, the sum will be equal to: how many numbers are between 26 and 100 (both inclusive) = 100 – 26 + 1 = 75",
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ca8ccc693450d734a24f9a5ae0087154 | show that it is not possible to have atriangle with sides a,b and c whose medians have lengths 2/3a , 2/3b and 4/5c. | askiitians.com | 2021.43 | [
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"text": "dear, please find the attachment we are all iitians and here to help you in your iit jee preparation. now you can win exciting gifts by answering the questions on discussion forum. so help discuss any query on askiitians forum and become an elite expert league askiitian. now you score 5+15 points by uploading your pic and downloading the askiitians toolbar : click here to download the toolbar.. jitender",
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5526966efc55ebb4daacde12b6df0031 | a dielectric slab is introduced between the plates of a capacitor. if the charge on the capacitor is q and the magnitude of the induced charge on the dielectric surface is q?, then (a) q? q (always) (c) q? = q (always) (d) q? = 0 | askiitians.com | 2021.25 | [
{
"text": "a dielectric slab is introduced between the plates of a\ncapacitor. if the charge on the capacitor is q and the magnitude of the\ninduced charge on the dielectric surface is q? q’ must be\nsmaller than q the induced charges on the faces of the dielectric\ndecrease the electric field. thus, q’<q. electric field\nproduced due to charge q’ is in a direction just oppostite to that produced by\ncharge q. the induced surface charges on the dielectric cause\nan electric field just opposing the original field and these fields tend to\ncancel each other resulting in a reduction of the original field. thanks & regards, vasantha sivaraj, askiitians faculty",
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6151821d9e1cc219d5344c95e0f223fa | . a person cannot see distinctly objects kept beyond 2 m. this defect can be corrected by using a lens of power (a) +0.5 d (b) -0.5 d (c) +0.2 d (d) -0.2 d | askiitians.com | 2021.43 | [
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"text": "answer: b",
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59af56c7253f19ae1942e2c65edf1cfa | question is attached... {alts-10 q39} | askiitians.com | 2021.39 | [
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"text": "similar q&a here answers.yahoo.com/question/index?qid=20090410100802aao78jj . use the standard interference formula d*siny = pathdifference and use siny",
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"text": "answer is (a) three",
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66326b96173c50e1616741a4d6101714 | a sample of hydrogen atoms and in each atom , the electron is excited to the energy level n.what is the? maximum no. of unique wavelengths this sample can emit? please give a simple explanation. its really confusing.also i would like to know the difference between the above and below question. there is a hydrogen atom in the ground state . i t is excited to a higher energy level n .when it comes back to ground state, it emits radiation .what is the max. no. of unique wavelength it can emit? | askiitians.com | 2021.25 | [
{
"text": "as it seems to me both questions are one & same.you see whenever an electron is in higher energy level it loses exact quanta of energy in the form of radiation emitted to go in the lower energy level.for hydrogen atom this energy is inversely proportional to the square of level that electron occupy. now from level 'n' maximum transitions could be 'n-1' as electron could end up in any of lower 'n-1' levels.as you could verify that each transition is unique for the value of enery released as radiation.so you've 'n-1' unique wavelenths corresponding to them. similarly for electron in 'n-1'th level there are 'n-2' unique wavelengths & so on upto 1 for 'n=1' (one above ground level). adding all give max. no. of unique wavelengths=n*(n-1)/2 {or, n c 2 ;i.e. choosing 2 levels out of n} for 2nd version it may be explicitly said that no in-between transitions are taken into consideration,only transition to ground state is counted then you've distinct 'n-1' wavelengths,otherwise both q's are same statements. here you must know that for the 1st version of the q i neglect any interaction between radiation emitted by one atom & another atom.i presumed them to be single entities in behaviour,which couldn't be so.because in a sample of hydrogen atoms series of radiation attacking some electrons may propel them to higher energy states than 'n' which in turn cause emission of more energetic radiations when these electrons fall back to lower levels which in turn excite more & more like an avalanche.you see it's impossible then to determine exact no. of possible transitions !!!! above argument is quite valid for low pressure & high temp. sample with infinite volume to occupy. i hope you get this.any further query in this is answered fully just make your q to the point.(what u wanna know!)",
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9b12d94110d01a6c985bc03cb530e177 | what is the smallest bacterial cell? is it dialister or mycoplasma? | askiitians.com | 2021.39 | [
{
"text": "dear student mycoplasma genitalium is considered to be an ultra micro-bacterium smaller than other small bacteria with a size ranging from 200 nm- 300 nm. hope this helps good luck",
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"text": "dear friend mycoplasma genitalium is the smallest bacterial cell with a size of 200 to 300 nm. it is categorised as a ultramicrobacterium, which also includes rickettsia and chlamydia. thank u",
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2721fe630da95a42b44db8f122bf03c2 | is there any iit with astrophysics courses?? | askiitians.com | 2021.21 | [
{
"text": "you can look up for courses in iit delhi as they have recently started some courses on the topics relating to astronomy, some being taught by the director, iitd himself. they have the course details on their website. stating this, they still don’t have much good infrastructure for research in this field.",
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dbebadb7c9cc76c3c7c36b03f4d29040 | if z is any complex number satisfying |z – 3 – 2i| = 2, then the minimum value of |2z – 6 + 5i| is | askiitians.com | 2021.39 | [
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"text": "",
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{
"text": "dear student please refer the clear image , the image above does not looks good , it is blurr. hope for the best good luck cheers",
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00e4a6df81eb2517693f06b6ee1eb2da | the solution set of equation 4 sin theta cos theta -2cos theta -2root3 sin theta + root3 =0 in the interval of( 0, pi) is | askiitians.com | 2021.31 | [
{
"text": "the expression can be rearranged as:4sinx cosx - 2√3sinx - 2cosx + √3 = 02sinx ( 2cosx - √3 ) - 1 ( 2cosx - √3 ) = 0( 2sinx - 1 ) ( 2cosx - √3 ) = 0either sin x = 1/2 or cos x = √3/2 or both can be satisfied.sin x = 1/2 gives x = π/6, 5π/6 and cos x = √3/2 gives x = π/6, 11π/6 in the interval (0,2π)combining both x = π/6, 5π/6, 11π/6so according to your attached image answer is option d.",
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78dace395c07f4f4a32abf6a612de277 | sir, i am expecting a score of 125 in je advanced 2016. would i get a seat in iit? what could be my rank? | askiitians.com | 2021.21 | [
{
"text": "hi, i think you will... that is a brilliant score.. but do not know whther you can get your preferred discipline. wait for experts to ans. keep fingers crossed. best of luck!! jehoyesjira",
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e31de50e7fbfc8c213cdaffb45a2d65b | chlorine is present in war gas as: a)phosgene b)tear gas c)mustard gas d)all the above plz explain.. | askiitians.com | 2021.25 | [
{
"text": "chlorine is present as chloropicrin in war gas...its formula is ccl3no2..! hence none of the options matches with the answer.. plz approve..! priyanka tata",
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"text": "t",
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{
"text": "the correct answer is phosgene",
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{
"text": "the answer is tear gas. chloropicrin is a tear gas and called war gas as well. hope you found it helpful",
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0ac9585a5fc34aa239006f02bc0bbd63 | factorise. x^4 –(x–z)^4 ???????????????????????????????? | askiitians.com | 2021.31 | [
{
"text": "dear student x^4 –(x–z)^4 = (x^2)^2-{(x-z)^2}^2 = {x^2-(x-z)^2}{x^2+(x-z)^2} = { x-(x-z)}{x+(x-z)} {x^2+(x-z)^2} = z(2x-z)( x^2+x^2-2xz+z^2) = z(2x-z)( 2x^2-2xz+z^2) thanks",
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ef77ea9d7c7a9deb823cbae71daac2fe | find the equation of the line perpendicular to 2x-3y+5=0 which is at a distance of 5 units from the origin. please reply soon. thanks | askiitians.com | 2021.39 | [
{
"text": "dear student, slope of this line is 2/3 hence slope of perp line is -3/2 now find its equation....",
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{
"text": "dear student slope of the given line is = 2/3 slope of line perpendicular to this = -3/2 so the required equation of line is = y = -3x/2 + c perpendicular distance from origin = => d = 5 = | c/(13^1/2)| => c = + or - 5*(13^1/2) i hope it explains",
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52e94b6f51a4beb2ce0fd8391b4f69fa | a missile is destroyed bfore hitting the target by a probability of 1/3. if the missile is nt destroyed probability of hitting the target is 3/4. three missiles are fired .the probability of exactly 2 hits the target is..? | askiitians.com | 2021.43 | [
{
"text": "prob missile not destroyed=2/3 prob hitting target if not dest=3/4 prob hitting target if fired= 2/3*3/4=1/2 prob not hitting target= 1-1/2=1/2 required prob= (3c2) (1/2)^2 (1/2)^1=3/8",
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2088ebae0123fe38d491691bfc975f38 | mesangial cells are specialised smooth muscle cells that are function to regulate blood flow in he blood essels they are found in which organ of the body testis brain kidney ovary | askiitians.com | 2021.21 | [
{
"text": "hello student correct answer is 3. kidney mesangial cells are contactile and play a role in regulation of glomerular filteration. they are of two types that is extraglomerular and intraglomerular.",
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"text": "the correct answer is (3) kidney mesangial cells are specialized cells around blood vessels in the kidneys, at the mesangium. they are specialized smooth muscle cells that function to regulate blood flow through the capillaries, usually divided into two types, each having a very distinct function and location: extraglomerular mesangial cells intraglomerular mesangial cells",
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7a361b26a8bf26e123632bbce870994b | the greatest value of the expression sin^2(15 π/8 -4x) – sin^2(17 π/8 -4x) for 0 | askiitians.com | 2021.21 | [
{
"text": "greatest value for sin^2(15 π/8 -4x) will be in the interval x lying b/w 0 to pi/2. .i,e 15 π/8 -4x = pi/2 4x = 15pi/2 – pi/2 4x = 7pi x = 7pi/4 and 17 π/8 -4x = 0 {this should be minimum.) 4x = 17pi/8 x = 17pi/32",
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d260d696ee6324685b0d663d694786d0 | difference between cell plate and cell furrow method.. | askiitians.com | 2021.31 | [
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"text": "cell replication takes several forms, but the most common is cell division , or the splitting of cell into multiple new cells. each new cell contains the full genetic information of the original cell plates are structures that grow in plant cells. the cell plate grows between the identical components of the splitting cell, acting as a partition that eventually contains the components and becomes the solid cell wall that protects the inside. this serves to separate the two new cells and seal off the area that might open as the cell splits. cleavage furrows are depressions in animal cells that form as the cell begins its division. because the cell cannot open up and risk losing all its internal fluids and components, the cell wall tightens around the point of division and pinches off to contain each cell. the cleavage furrow surrounds the cell and slowly tightens as the division process continues.",
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9493db79b03a3d76a5daeefaea521267 | sir,if my jee advanced score is 85,what will be my expected sc rank? thank u. | askiitians.com | 2021.43 | [
{
"text": "your sc rank may be around 1200-1400. thanks bharat bajaj iit delhi askiitians faculty",
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af47c3af9726521868bf52243ba8dd79 | loga base b.loga base c+logb base a. logb base c+logc base a. logc base b=3,find the value of abc | askiitians.com | 2021.43 | [
{
"text": "abc = 1 , write log a base b as log a /log b and other logs also, then add we get x^3 + y^3 +z^3 = 3xyz , which is possible when xyz = 1 or x+ y + z =0 . x = log a, y = log b , z = log c.",
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c34a41d45896990e3ec0c3b5f708adc5 | i got 208 marks in jeeiit2011 exam. can i get admission in other engg. colleges? if yes, please inform their names | askiitians.com | 2021.21 | [
{
"text": "dear kaushal, check out the details inlinks given below : askiitians provide the iit jee cut off along with the opening and closing ran given below for iit jee cut off: http://www.askiitians.com/iit-jee-2011-counselling.html click for opening and closing ranks: http://www.askiitians.com/iits-2009-2010-opening-and-closing-rank.aspx thanks and all the best ..",
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b4d49e4224942211a914be024aa19eb4 | the first true hominids on fossil record has been placed in genus a)homo b) australopithecus c)dryopithecus d)aegyptopithecus | askiitians.com | 2021.31 | [
{
"text": "the first true hominids on the fossil records have been placed in the genus australopithecus. the discovered fossils of australopithecus africanus ( africal ape-man) suggested that they had bipedal locomotion, omnivorous diet, erect posture, and human like teeth. hope it helps. then do give a thumbsup!",
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32e4a3c7341f5d33235708fdd98d9242 | sir my aieee air is 19500 nd i belong to obc (ncl).my state obc rank is 124.can i get admission in dtu.if yes then wich stream... | askiitians.com | 2021.21 | [
{
"text": "dear javed, with you rank, it will be quite difficult to get dtu. now you can win exciting gifts by answering the questions on discussion forum. so help discuss any query on askiitians forum and become an elite expert league askiitian. regards vijay luxmi",
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4da4b01e8b47276c3f030c35153e2ed4 | what are the different mean by which infectious diseases are spread? | askiitians.com | 2021.43 | [
{
"text": "dear student the different means by which infectious diseases spread are: (a) by body fluids: fluids like blood, semen, mother's milk, when infected, can also cause diseases. example, aids. (b) through food and water: when one eats drinks contaminated food/water, that contains bacteria, vrirns, worm etc. it can cause diseases like cholera 'phoid, hepatitis, (c) trough contact: many diseases spread by contact of infected person with the healthy person, example, fungal infections, skin diseases, scabies etc. (d) by sexual contact: many diseases can be transmitted, example, syphilis, aids. (e) vectors: the organism that spreads a disease by carrying pathogens from one place to another is called vector. example, mosquitoes are vectors that carry pathogens like protozoa. (f) vectors: the organism that spreads a disease by carrying pathogens from one place to another is called vector. example, mosquitoes are vectors that carry pathogens like protozoa. thanks",
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f501facdc7e03734471286317c43827c | a certain in charge q is divided at first into 2 parts small q &( q-q) later on the charges are placed at a certain distance. if the force of interaction between the two charges is maximum then q/q is | askiitians.com | 2021.31 | [
{
"text": "thanks and regards sunil kr askiitian faculty",
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fbe2b69397e7eb0c8d7edcb6f63723bd | pls give the rankings of all iits. old as well as new on all india basis. abhilasha | askiitians.com | 2021.25 | [
{
"text": "dear sanjay, as the new iits are very new ( 1 year or less ) they couldnot be ranked till its first batch graduates. ranking of the old iits are like :- 1 iit kanpur 2 iit kharagpur 3 iit - bombay 4 iit delhi 5 iit madras 6 iit roorkee 7 iit guwahati thank you.",
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"text": "go for old established iits(good branches) or go ism dhanbad (petroleum,mining,mining machinery,applied geology) or bhu (cse, electrical,electronics,mechanical)",
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"text": "if you go for an old iit take only good branches like cse ,elec,mech etc. ism dhanbad is the best college in asia for earth science branches ( petro,mining,mining machinery,applied geology) however mining branch of iit kgp gets full within 3500 ranks & that of ism within 6000 ranks , its becoz of iit tag , & in whole asia no college or university can teach better than ism",
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3085c95236e214abf583f7d9154b9f3e | what is the relationship between redox potential and ph? why would a disulfide be reduced with increase ph? | askiitians.com | 2021.43 | [
{
"text": "there are many chemical equilibria. due the acidity constant of the presents species in soil, there is in your aqueous sample, molecular species and dissociated species, that changes with ph. for example, acetic acid present a pka equal to 4.72. in ph 4.72 there is 50% of acetic acid (ha) specie and 50% of acetate ion (a-) specie. in ph<4.72 increase the molecular specie (ha) and ph>4.72 the opposite. therefore, depending of the ph, you will have lower or higher condutivity, because you will may have molecular (low condutivity) or dissociated (high condutivity) species. the redox potencial also changes with type of specie, molecular or dissociated (charged).",
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897843d999975ffda355203dc7c147a0 | (a) 5 (b) 6 (c) 7 (d) 8 | askiitians.com | 2021.21 | [
{
"text": "hi, please ask your question again... its not clear .",
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356ad7bc91c95bb76650f02e3288645b | cos(a-a), cosa,cos(a-b) are in hp then cosa.cosb/2= | askiitians.com | 2021.43 | [
{
"text": "dear student there is an error in question kindly check first term must be cos ( b-a) as it is not getting simplified beyond a certain point regards",
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b0059da79ec934c6ff76c0eab9c66349 | name five compounds having halagon | askiitians.com | 2021.31 | [
{
"text": "hlo0000alkanes( ) are the most common organic compounds having halogen atoms. some of them are,,, chloromethane chloroethane chloropropane chlorobutane chloropentane chlorohexane chloroheptane chlorooctane chloronectane chlorodecane",
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bed504f8709456075044fa4228aaa251 | what is come in the box please solve it xbox he dg dg dgd he h | askiitians.com | 2021.31 | [
{
"text": "dear student 3.5 + 4.5 = 8 + + 9.5 - 3.5 = 6 = 13 = 8 hope it helps in case of any difficulty, please feel free to ask again",
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"text": "dear student first let us try to solve the two left boxes top and down. we need two numbers which sum to a total of 13 let us assume the two numbers to be 7/2 and 19/2 7/2 +19/2 = 13 next , the second box which which sum to a total of 13. let us assume the two numbers to be 9/2 and 7/2 9/2 +7/2 =8 now, to solve horizontally, 7/2 - 8 = 9/2 and, 19/2 -6 = 7/2 so, the order would be, 7/2 + 9/ 2 = 8 + + 19/2 - 7/2 = 6 = = 13 8",
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67a50a0a90ffde8f0a71e7ccecd8b63b | q a block of mass m is raised from the floor to the surface of a table h metres high now initially the the kinetic enrgy was zero and finally the kinetic energy is again zero.then what about the work done?because work-energy theorem says that "change in kinetic energy is the work done." | askiitians.com | 2021.31 | [
{
"text": "work - energy theorem still holds here net work done is still zero because external agent is also working here against the gravity and the gravity is doing the negetive work done here and external agent is doing the positive work done but in equal amount so the net work done will be zero here. and the \"mgh\" is the work done only by the external agent that is accounted in the question.",
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92cdf6eb35efb4190362d5ecd50a5702 | if the opposite sides of a square are (-2,3) & (8,5) . then find the equations of sides (without taking angles). [we should take abcd as a square and we shouldn`t use the following: angle in a square is right angle by taking diagonals. | askiitians.com | 2021.31 | [
{
"text": "dear student, first assume the coordinates to be x1,y1 and x2,y2 apply distance formula so that you can get two relations one b/w x1 n y1 & other between x2 n y2, then by using the condition that the opposite sides of a square are parallel thus we get four equations and on solving them we can get the answer, we are all iitians and here to help you in your iit jee preparation. now you can win exciting gifts by answering the questions on discussion forum. so help discuss any query on askiitians forum and become an elite expert league askiitian. now you score 5+15 points by uploading your pic and downloading the askiitians toolbar : click here to download the toolbar.. aman bansal",
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716385679709a8ee77b072d8f640e9ae | write the important note morphology of plant and flowering plant.give an example | askiitians.com | 2021.39 | [
{
"text": "refer to this link. it’s been provided by askiitians only https://www.askiitians.com/revision-notes/biology/morphology-of-flowering-plants/",
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ee824f735f68df871fe4a09425f687c7 | sir , i have got 336 marks in bitsat 2010 is there any chance to get eee or ece in pilani campus | askiitians.com | 2021.21 | [
{
"text": "hi shaik, please check the bitsat cut off : bitsat 2008 cutoffs degree programme at pilani campus cut-off bitsat-2008 score b.e.(hons.): chemical 309 b.e.(hons.): civil 304 b.e.(hons.): electrical & electronics 339 b.e.(hons.): mechanical 324 b.pharm.(hons.) 241 b.e.(hons.): computer science 349 b.e.(hons.): electronics & instrumentation 331 m.sc.(hons.): biological sciences 263 m.sc.(hons.): chemistry 282 m.sc.(hons.): economics 289 m.sc.(hons.): mathematics 287 m.sc.(hons.): physics 288 m.sc.(tech.): general studies 302 m.sc.(tech.): engineering technology 283 m.sc.(tech.): finance 276 m.sc.(tech.): information systems 287 please feel free to post as many doubts on our disucssion forum as you can. if you find any question difficult to understand - post it here and we will get you the answer and detailed solution very quickly. we are all iitians and here to help you in your iit jee preparation. all the best. regards vijay luxmi",
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432c483a1b7ee824cb1813fbc36c789b | how to find the secondary valence in a coordination complex? | askiitians.com | 2021.21 | [
{
"text": "dear student! the secondary valence is equal to the coordination number and is fixed for a metal. actually,the secondary valencies are non ionisable valencies. these are satisfied by neutral molecules or negative ions.the secondary valency is fixed for a metal and is equal to the co ordination number. the coordination number of the central atom/ion is determined only by the number of sigma bonds formed by the ligand with the central atom/ion and this gives the secondary valency too. for ex: for, ptcl 2 .2nh 3 the secondary valency is equal to the co ordination no. i.e. 4.",
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"text": "dear students basically werner a swiss chemist give us two term .. 1) primary valence 2) secondary valence primary valence...it is normally ionisable.these are fully satisfied by negative ion.. secondary valence...it is not ionisable and these are satisfied by neutral molecules and negative ion",
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de03376b2259d22860515ccdf4093bca | the time between electron respone and peak tine is known as? | askiitians.com | 2021.25 | [
{
"text": "hi, thank you for asking rise time is the time taken by a signal to change from a specified low value to a specified high value. hope i answered the question",
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f03824c1facb435569c613a331f870f0 | discovery of recombination dna technology was made by sutton and boveri cohon and boyer shigetane ishiwatari am chakarabarty | askiitians.com | 2021.25 | [
{
"text": "hello, recombinant dna technology was discovered by 2) herbert boyer and stanley norman cohen in1973 which allowed scientists to manipulate dna. they removed the plasmid from cell and cut it usin restriction enzymes, added other slice dna and transformed it into e. coli which was able to synthesize new dna.",
"name": "",
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{
"text": "the correct answer is (2) cohon and boyer the invention of recombinant dna technology—the way in which genetic material from one organism is artificially introduced into the genome of another organism and then replicated and expressed by that other organism—was largely the work of paul berg (b. 1926), herbert w. boyer (b. 1936), and stanley n. cohen (b. 1935), although many other scientists made important contributions to the new technology as well.",
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e6873826879adba838fbd4d38f685833 | please intimate the expected demand of branches form top to bottom for iit jee 2010. | askiitians.com | 2021.25 | [
{
"text": "dear gurbir, and as compared to the last year's cutoff this year this has been predited that the cutoffs will be lowered, as the level of the paper is slightly decresed. however score may vary and as a result rank may also vary, a slight difference may create lots of difference in rank. the expected demand of branches from top to bottomyou can view on the following links: http://www.askiitians.com/iit-jee-2010-cut-offs.aspx http://www.askiitians.com/iits-2009-2010-opening-and-closing-rank.aspx askiitians.com provides online iit jee courses and iit jee test series with iitians. click here to get free online test series and check your status timely or you can join us as our registered user for getting best iit jee study material or iit jee test series. askiitians provide you all the best possible information, feel free to ask. all the best. thanks and regards. akhilesh shukla",
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5669ede9481868ba9b2caa91191ebbc9 | a plane is flying east from ahmedabad to kolkota. for an earth bound observer, which way is the coriolis force acting on the plane?choose one answer. southwards northwards northwards and vertically downwards southwards and vertically upwards | askiitians.com | 2021.25 | [
{
"text": "dear akash, as air moves from high to low pressure in the northern hemisphere, it is deflected to the right by the coriolis force. in the southern hemisphere, air moving from high to low pressure is deflected to the left by the coriolis force. the amount of deflection the air makes is directly related to both the speed at which the air is moving and its latitude. therefore, slowly blowing winds will be deflected only a small amount, while stronger winds will be deflected more. likewise, winds blowing closer to the poles will be deflected more than winds at the same speed closer to the equator. the coriolis force is zero right at the equator. we are all iitians and here to help you in your iit jee preparation. all the best. if you like this answer please approve it.... win exciting gifts by answering the questions on discussion forum sagar singh b.tech iit delhi",
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740288bc30818dabaca29792b9e4461e | simple method for elementary matrix is there any simple methodto learn it please any one answer | askiitians.com | 2021.31 | [
{
"text": "dear student yes there is also anothe rmethod besides elementary meyhod. this is by finding adjoint of a matrix. a^-1 = adj (a) /|a|",
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28929a5024107c1ec80fc4337fafb45f | what are the characteristics of electromagnetic waves | askiitians.com | 2021.39 | [
{
"text": "characteristics of electromagnetic wave propagation meant all by, through a magnetized plasma slab with linear electron density profile is analysed. in the numerical analysis, cold, weakly ionized, collisional and steady state plasma layer is divided into sufficiently thin, adjacent slabs, in each of which plasma parameters are constant. reflection and transmission coeficients are calculated for discretised plasma by considering electron density profile with positive and negative slopes. this is all about the characterstics of electromegnatic wave hit approve if useful",
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70a5434927ef910293eb645e12463439 | which topic is more scoring in physics and easy also | askiitians.com | 2021.31 | [
{
"text": "hi subhash, try to study all the topics with concentration and make sure that you can attempt any type of question related to the topic that you have studied and i m giving u some scoring n easy topics so dat u can plan accordingly...... usually topics of 12th class is relatively easier compratively to topics of 11th...... in 12th topics , i wud suggest u dat modern physics is d most easiest topic in iit jee and u can score very high as its weightage is also good so if u can score in this topic den u r always better placed ,,,,,after this i wud suggest dat waves and simple harmonic motion r some easy topics from class 11, again for 12th ,magnetism & current r scoring topics........ all the best !!",
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c78f467fcf71004059124b67d6307e23 | 90. classify the followings as saprotrophs or parasites: leech, yeast, mushroom | askiitians.com | 2021.31 | [
{
"text": "answer: explanation: saprotrophs : yeast, mushroom parasites : leech",
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d718d027997011cbb61c2d092ae39d4e | 75. the length of small intestine in a human adult is about 3.5 m. [true/false] | askiitians.com | 2021.31 | [
{
"text": "answer: explanation: false",
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}
] |
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563abffacc4726224dd85fc1b91ab60b | a 0.1 kg ball is attached to a string 1.2 m long and suspended .at 0.2m below suspension point a peg is placed which string hits when the pendulum comes down. if the mass is pulled a small distance to one side and released. what will be the time period of motion........ ans: 2.1s | askiitians.com | 2021.43 | [
{
"text": "dear pawan time period will be = pi * (sqrt (1.2) + 1) / sqrt(g) = 2.1 sec hope it helps regards arun (askiitians forum expert)",
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db4bcdbd2dd15f57ee98fbeb7a3b1211 | hello sir , what is the criteria to opt for aeronautical eng in any of the iit’s ? | askiitians.com | 2021.43 | [
{
"text": "no special criteria for opting for aeronautical engineering in iits. score good in jeemains---> score good in jee advanced.",
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19ebdc6c45b455a09060950302e6b741 | in projectile motion when air resistance is negligible, is it ever necessary to consider three-dimensional motion rather than two-dimensional? | askiitians.com | 2021.43 | [
{
"text": "it is not necessary to consider the three dimension projection motion when the air resistance is negligible. this is because in absence of air-resistance, the object will move in a two dimensional plane, such that one of the axis would account for the horizontal displacement and the other axis would account for the vertical displacement of object.",
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6d6c3043c9de89a1ab46925e7319da6c | if l be the inductance,r resistance and c be the capacitance of a capacitor, then dimensional formulae of l/c and rc are | askiitians.com | 2021.21 | [
{
"text": "dear student the answer is t time regards",
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},
{
"text": "l/r will be [t]. rc = it/i = t i.e dimesional formula would be [t]. so the unit of rc is second or time constant. so, the dimensional formula of root lc would be [t].",
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] |
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fd79c2234e3f919afce9b8897016c424 | a body is projected vertically with speed 10 and other at same time with same speed in downward direction from top of a tower.the magnitude of the accelaration of 1st body w.r.t 2nd body is what?? | askiitians.com | 2021.39 | [
{
"text": "zero: as the motion is only in 1-dimension so,there is no need for vecor sign. we can assume as +se as vertical direction and -ve as downwars direction. a(relative)= a 1 -a 2 according to our convention vertical motion is +ve and downward motion is -ve. so. a 1 =+g a 2 =-g hence , a(relative) = a 1 -a 2 =(+g)-(-g) =g-g =0.",
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"text": "dear taniya, no need to fret. this is a very simple question used for confusing the students. since the acceleration of both the bodies will be g downwards, therefore their relative acceleration will be zero . taking upward direction to be positive and ground as refrence, we have: acceleration of 1 st body = a 1 = -g acceleration of 2 nd body = a 2 = -g acceleration of 1 st body wrt 2 nd is given by: a 12 = a 1 – a 2 = -g – (-g) = 0",
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7ea9f5ddbbe102be9bc35ed59d08d805 | for any triangle abc prove that ab^2+ac^2=2(ad^2+bd^2) where d is the midpoint of bc. | askiitians.com | 2021.39 | [
{
"text": "solution: take the points as given in the figure now lhs = ab 2 + ac 2 = a^2 + b^2 + (a - 2c)^2 + b^2 = a^2 + b^2 + a^2 - 4ac + 4*c^2 + b^2 = 2 a^2 + 2 b^2 + 4 c^2 - 4 ac ......................................................... (1) rhs = 2 (ad^2 + bd^2) = 2 [ (a - c)^2 + b^2 + c^2 ] = 2 [ a^2 - 2 ac + c^2 + b^2 + c^2] = 2 [ a^2 + b^2 + 2 c^2 - 2 ac] = 2 a^2 + 2 b^2 + 4 c^2 - 4 ac ......................................................... (2) eqn (1 ) = eqn(2) so lhs = rhs thanks and regards, ajay verma, askiitians faculty, iit hyderabad",
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fc62445351aeca3822e0b07ed6435c4a | which one of the following is the most widely accepted method of contraception in india, as at present? 1. iuds' (intra uterine devices) 2. cervical caps 3. tubectomy 4. diaphragms | askiitians.com | 2021.39 | [
{
"text": "sol: the most widely accepted method of contraception in india is iuds. answer: (1)",
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925af563d1cd85cb3144968e95434bfc | 2 wanna compelete solution....................... ... ......... ................................................. | askiitians.com | 2021.43 | [
{
"text": "resultant of two vector r = then r = r = then r = p hope it clears. if you like answer then please approve it.",
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1e0f023c9053ee9557d45c1f4a8ac0a8 | evaluate:2cocec 2 30 0 +3sin 2 60 0 -3/4tan 2 30 0 | askiitians.com | 2021.21 | [
{
"text": "please find your answer below- 2 cosec 2 30 o + 3sin 2 60 0 -3/4tan 2 30 o =2(2) 2 +3[(3 1/2 )/2] 2 -3/4[1/(3 1/2 )] =8+(9/4) -(1/4) =40/4 =10 hope you like this. thank you",
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43b84e9d874fdf2cf59c9a8714f2e025 | a projectile is projected with speed u at an angle of 60 degrees with the horizontal from the foot of an inclined plane.if the projectile hits the plane horizontally,the range on the inclined plane will be: a)((u^2)*underroot 21)/2g b)3u^2/4g c)u^2/2g d)underroot 21*u^2/8g ans:d | askiitians.com | 2021.31 | [
{
"text": "dear sameer, time = 1/2 . time of flight=usin(o)/g=u.sin60/g x axis distance = ucos60.t=ucos60.usin60/g=(u^2)sin60.cos60/g distance on y=h(max)=(u^2)sin^2 (60)/2g hence total displacement=range on inclined plane=root(x^2+y^2)=root(21)u^2/8g (ans) regards.",
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d7d02a458b8f721e310114381f14d7fc | i am interested in finding a tutor who can work with us based students (primarily in ny, so eastern daylight time (9.5 hrs behind ist right now?)). my son has taken algebra i and some geometry, and is studying right now with amc8 & 10 see www mma org slash math competitions i think it would be helpful for him to do math that is like what he will be doing in school (he is going into 9 th grade) but a bit different, so his brain gets stressed a slightly different way, and he learns the math better. from a goal point of view, what i care most about is that he gets top grades in math and has strong fundamentals and a deep understanding. it would be great to also prep him for the sat. most kids in the us take this at the end of their junior year (11th grade), i would like him to take it at the end of 10 th grade or sooner, so its done, and he can focus his energy on ap classes (ap = advanced placement, this is a brand of tests that high school students can take to get college credits if they do well on the ap tests). i am not sure how indian math classes are organized compared to us classes. i think that some difference is positive (get a different view of the same problem). peter | askiitians.com | 2021.31 | [
{
"text": "hi sir, thank you for asking yes, we do support the students who want to do excellence in the field of mathematics. you can contact us through our website and drop your queries.",
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5fe4f2bef4af5808de323ce0e05e787f | what are the different ways to find the number of solutions or real solutions of the given expression in one, two or more variables? | askiitians.com | 2021.43 | [
{
"text": "dear student solving using graphs and matrices",
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}
] |
|
eff2d182541cdbb0bd0aaa868396c05a | question 6: when the current is switched on through a wire, a compass needle kept nearby gets deflected from its north-south position. explain. | askiitians.com | 2021.31 | [
{
"text": "answer:when a current is switched on through a wire, the wire starts behaving as a magnet. hence, when a compass needle is placed near the given current carrying wire, it gets influenced by the magnetic effect of electric current and gets deflected from its north- south position.",
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d7cdb21d82c61b6544f37ece64490380 | respected sir,i have got 95 marks in jee advanced 2014.i am from sc category.can you kindly give a detailed list of options available to me in any iit?thank you. | askiitians.com | 2021.43 | [
{
"text": "your predicted jee advanced 2014 rank is between 901 and 1000 iit guwahati w4124 mathematics and computing iit guwahati w4117 engineering physics iit guwahati w4108 chemical science and technology iit guwahati w4107 chemical engineering iit(bhu) varanasi v5232 material science and technology iit(bhu) varanasi v4107 chemical engineering iit ropar u4125 mechanical engineering iit ropar u4111 electrical engineering ism dhanbad s5216 computer science and engineering ism dhanbad s4134 petroleum engineering ism dhanbad s4130 mining engineering ism dhanbad s4125 mechanical engineering ism dhanbad s4114 electronics and communication engineering ism dhanbad s4111 electrical engineering ism dhanbad s4110 computer science and engineering ism dhanbad s4109 civil engineering iit roorkee r4136 production and industrial engineering iit patna p4141 civil and infrastructure engineering iit patna p4125 mechanical engineering iit patna p4111 electrical engineering iit patna p4110 computer science and engineering iit gandhinagar n4109 civil engineering iit gandhinagar n4107 chemical engineering iit madras m5227 engineering design (automotive engineering) iit madras m4132 naval architecture and ocean engineering iit madras m4127 metallurgical and materials engineering iit kanpur k4204 physics iit kanpur k4202 economics iit kanpur k4123 materials science and engineering iit jodhpur j4111 electrical engineering iit hyderabad h4118 engineering science iit hyderabad h4107 chemical engineering iit kharagpur g5507 physics iit kharagpur g5506 mathematics and computing iit kharagpur g5503 chemistry iit kharagpur g5251 ocean engineering and naval architecture iit kharagpur g5243 metallurgical and materials engineering with m.tech. in metallurgical and materials engineering iit kharagpur g5231 manufacturing science and engineering with m.tech. in industrial engineering and management iit kharagpur g5230 industrial engineering with m.tech. in industrial engineering and management iit kharagpur g4130 mining engineering iit kharagpur g4127 metallurgical and materials engineering iit indore e4125 mechanical engineering iit delhi d5205 biochemical engineering and biotechnology iit delhi d4139 textile technology iit mandi c4125 mechanical engineering iit mandi c4111 electrical engineering iit bombay b4128 metallurgical engineering and materials science iit bhubaneswar a4111 electrical engineering iit bhubaneswar a4110 computer science and engineering iit bhubaneswar a4109 civil engineering name of institute course code course name according to the data of last year as released by iit, your possible branch & institute can be one of the following. thanks bharat bajajiit delhi askiitians faculty",
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|
70d4071dc7028e8a0c22c37fb439b2e7 | coefficient of transmission and coefficient of reflection for a given body are 0.22 and 0.74 respectively. then, at a given temperature, the coefficient of emission for the body is (a) 0.4 (b) 0.04 (c) 0.96 (d) 0.22 | askiitians.com | 2021.21 | [
{
"text": "dear student the answer is option b regards",
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},
{
"text": "for a grey body a+r+t=1 if α=0.4,r=0.6 then t=1−0.4−0.6=0 the body is opaque ////////////////////////////////////////////////////////",
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|
1482b38c00dc31d6446f8d8545ed043f | 15. which out of the following is not a function of vacuole? (a) storage (b) providing turgidity and rigidity to the cell (c) waste excretion (d) locomotion | askiitians.com | 2021.43 | [
{
"text": "ans : (d) locomotion",
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] |
|
6b16f19dae611491747ede38d2492109 | what is ball and socket joint and what is the function of it? | askiitians.com | 2021.31 | [
{
"text": "the ball and socket joint provides swinging and rotating movements. the articulating bone is received into the cavity of another bone, allowing the distal bone to move around three main axes with a common center. the joint has stabilizing ligaments that limit the directions and extent to which the bones can be moved.",
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"text": "ball and socket joint - a ball and socket joint allows maximum movement in all directions. the head or ball like end of one bone fits into cup like end of the other bone. example- the joint between the shoulder bone and the upper arm bone (pectoral girdle) , the joint between the hip bone and the thigh bones (pelvic girdle).",
"name": "",
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"text": "ball and socket joints are those synovial joints in which the articulating surface of one bone is ball shaped and it fixes into a basin like depression of another bone and the movement is in frontwards ,backwards or to or fro direction.no angular movement takes place.",
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|
24511c0a070a83908a5daad625837037 | what is the general electronic configuration of the carbon family of elements? | askiitians.com | 2021.43 | [
{
"text": "the general electonic configuration of the carbon family of elements is ns2 np2..............................................................................................................................",
"name": "",
"is_accepted": false
},
{
"text": "my dear friend the answer for your question is ns2np2 all the best for your bright future",
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|
510170ca5ed9f7cf6672bf2f4ce2a406 | my rank in jee 2010 is 8394.is there any scope of getting any of the iit's.please reply fast. | askiitians.com | 2021.25 | [
{
"text": "dear kishalay, dear ethan, as your rank is 8394 in jee 2010, so almost chances are less that you can get any desired branch in iit's , so my advice for you would be that if you any how manage to get into bits then that would be the better option for you or if nit warangal or trichy . but as you marks in aieee suggests that chances are less t hat you can get any of these nit's , so overall best option for you would be that you can go for bits . for further details you can visit the following: http://www.askiitians.com/iit-jee-2010-cut-offs.aspx http://www.askiitians.com/iits-2009-2010-opening-and-closing-rank.aspx askiitians.com provides online iit jee courses and iit jee test series with iitians. click here to get free online test series and check your status timely or you can join us as our registered user for getting best iit jee study material or iit jee test series. askiitians provide you all the best possible information, feel free to ask. all the best. thanks and regards. akhilesh shukla",
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f675cbb457512c323a6053a49bb7863d | sina/a=332/666 then what is equal to a??sinb/b=??sinc/c=?sind/d=?sine/e=? | askiitians.com | 2021.39 | [
{
"text": "dear student",
"name": "",
"is_accepted": false
}
] |
|
4acfbeeeb9cc245ec6ce68ecf5086685 | i want the derivation of volume of 'terahedron' | askiitians.com | 2021.31 | [
{
"text": "dear sachin the tetrahedron has 4 faces, 4 vertices, and 6 edges. each face is an equilateral triangle. three faces meet at each vertex. begin with a tetrahedron of edge length s . its faces are equilateral triangles. the length of their sides is s , and the measure of their interior angles is p /3. first, find the area of each triangular face. multiply that by the number of faces to get the total surface area, a . the dihedral angle formula can be applied here because three faces meet at each vertex. all of the faces are equilateral triangles, so let a = b = g = p /3. find the apothem of a face, and use it in the calculations for the inradius and circumradius. now, the volume formula. here is another way to work out the volume. the tetrahedron is also a pyramid, and its height is the sum of the inradius and the circumradius. use that fact and apply the pyramid volume formula. redundant calculations like this are a good way of checking the results. please feel free to post as many doubts on our discussion forum as you can.we will get you the answer and detailed solution very quickly. all the best. regards, askiitians experts prudhvi teja now you can win exciting gifts by answering the questions on discussion forum. so help discuss any query on askiitians forum and become an elite expert league askiitian",
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|
f502417c56f939a7512a209b337e8396 | can two angles be supplementary if both of them are: acute? | askiitians.com | 2021.31 | [
{
"text": "dear student no. if two angles are acute, means less than 90^o, the two angles cannot be supplementary. because, their sum will be always less than 90^o. thanks",
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] |
|
370c219c4a3d669f71355a34737d78db | hello sir , i am appearing of intermediate pls help me how to prepared my question.pls give me past four years question to solved.i am so obeylized you sir pls help me .so on | askiitians.com | 2021.39 | [
{
"text": "hello kunal preperation for aieee is easier as compared to iit jee as the syllabus pattern of aieee is similar to that of the central board of secondry education. so preparing for aieee is slightly easier. with the right guidance and adequate preperation, i am sure you will be able to crack aieee with ease. and the right guidance can be provided to you only by exiitians who have been in the education industry for a long amount of time. and all these experts can be found under one roof - askiitians.com. take a free demo class and you will get to see the difference yourself as an iitian will always be there for you. for a free demo class, please contact mr. manish kumar at 0120-4224242 the past year papers of aieee can be found at http://www.askiitians.com/aieee/aieee-past-papers hope that helped! ankit mehra",
"name": "",
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] |
|
abec7c0609bd1e55a641e7e7775f4f06 | sir please help me balance this equation- cr(oh)3+io3^-1-------->i-+cro4^2-(in basic medium) by ion electron method. sir it is written in my book to first balance all the atoms other that o and h by seeing increase and decrease in oxidation number . after that balance o by adding h20 to excess side and adding double of that to other side. but in this case the ans is the other way round . i am getting 2cr(oh)3+io3- >>>>i-+2cro4 2- after that i feel that there is one extra oxygen in lhs but in the ans there are 5h20 on the other side. pls help me. | askiitians.com | 2021.21 | [
{
"text": "if you will follow the steps you will get the answer. general steps step 1:try to balance the atoms in the equation by inspection, that is, by the standard technique for balancing non-redox equations. (many equations for redox reactions can be easily balanced by inspection.) if you successfully balance the atoms, go to step 2. if you are unable to balance the atoms, go to step 3. step 2:check to be sure that the net charge is the same on both sides of the equation. if it is, you can assume that the equation is correctly balanced. if the charge is not balanced, go to step 3. step 3:if you have trouble balancing the atoms and the charge by inspection, determine the oxidation numbers for the atoms in the formula, and use them to decide whether the reaction is a redox reaction. if it is not redox, return to step 1 and try again. if it is redox, go to step 4. step 4:determine the net increase in oxidation number for the element that is oxidized and the net decrease in oxidation number for the element that is reduced. step 5:determine a ratio of oxidized to reduced atoms that would yield a net increase in oxidation number equal to the net decrease in oxidation number (a ratio that makes the number of electrons lost equal to the number of electrons gained). step 6:add coefficients to the formulas so as to obtain the correct ratio of the atoms whose oxidation numbers are changing. (these coefficients are usually placed in front of the formulas on the reactant side of the arrow.) step 7:balance the rest of the equation by inspection.",
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|
9f690df3cf53fe591667a1f594ec390f | why apnoea is termed as inhibition of respiratory centre | askiitians.com | 2021.25 | [
{
"text": "hi shruti, thank you for asking apnoea is reffered to as breatlessness. it derived from its root latin word apnoea which means inability to breath. hope ii answered the question",
"name": "",
"is_accepted": false
}
] |
|
a1ac76ad0cf756423c636ecdaa1bae24 | if cos3x/cosx = 1/3 (0<=x<=90) what is the value of sin3x/sinx ? | askiitians.com | 2021.25 | [
{
"text": "cos3x/cosx= (4cos^3 x-3cosx)/cosx=1/3 => 4cos^2 x-3=1/3 cos^2 x=5/6 as we know that cos^2 x+sin^2 x=1 so, sin^2 x=1/6 and sin3x/sinx= (3sinx-4sin^3 x)/sinx => 3-4sin^2 x=7/3 asnwer>> 7/3",
"name": "",
"is_accepted": false
},
{
"text": "thank you !! but i could solve it.... by the same method after posting it!!",
"name": "",
"is_accepted": false
}
] |
|
503387a6bd5432103b27d29d4d9992cd | anti-nutritional neurotoxic factor called cyanoalanine is found in brassica oleracea almond seeds of khesari kindney bean | askiitians.com | 2021.43 | [
{
"text": "the correct option is 3. in enzymology, a l-3-cyanoalanine synthase (ec 4.4.1.9) is an enzyme that catalyzes the chemical reaction l-cysteine + hydrogen cyanide \rightleftharpoons l-3-cyanoalanine + hydrogen sulfide thus, the two substrates of this enzyme are l-cysteine and hydrogen cyanide, whereas its two products are l-3-cyanoalanine and hydrogen sulfide. this enzyme belongs to the family of lyases, specifically the class of carbon-sulfur lyases. the systematic name of this enzyme class is l-cysteine hydrogen-sulfide-lyase (adding hydrogen cyanide l-3-cyanoalanine-forming). other names in common use include beta-cyanoalanine synthase, beta-cyanoalanine synthetase, beta-cyano-l-alanine synthase, and l-cysteine hydrogen-sulfide-lyase (adding hcn). this enzyme participates in cyanoamino acid metabolism.",
"name": "",
"is_accepted": false
}
] |
|
fc49f0561bcb6a70d8830e261badf520 | i have got air 264(obc) i m confused b/w iit r cs, iit d mnc nd iit d mechanical (i really like mathematics as a subject) please suggest me what to do? please suggest other branches as well | askiitians.com | 2021.43 | [
{
"text": "iit d mnc is a very good branch, i would suggest you to go for it. sher mohammad faculty askiitiasn b.tech, iit delhi",
"name": "",
"is_accepted": false
}
] |
|
b6133d85c3ed672a55c4cf56dd689c75 | can you please explain the difference between the board based exam and school based exam? | askiitians.com | 2021.39 | [
{
"text": "dear shiva if you want to change the board after class 10 th then go with board based exam . in that , the evaluation will be done by diffrent teacher other than your school . |but in school based exam , your school teacher will evaluate the answer sheet , but by giving that , u will have to stay in cbse board in class 11 th , but you can change the school , but within cbse . hope it clears kindly approve",
"name": "",
"is_accepted": false
}
] |
|
4b22b6426641afda71986662b7df4aaf | monazite is an ore of a.zirconium b.thorium c.titanium d.iron | askiitians.com | 2021.31 | [
{
"text": "thorium",
"name": "",
"is_accepted": false
},
{
"text": "b. thorium",
"name": "",
"is_accepted": false
},
{
"text": "b)thorium",
"name": "",
"is_accepted": false
}
] |
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