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40f1830e9e3b29ddcf370bf0fb133b25 | why aaskiitian giving wrong information about 12 th board marks for jee advanced...in this link it only says that candidte has to be in top 20 percentie.where is the 75% criteria?????? https://www.askiitians.com/iit-jee/advanced/faqs they should read brochure of jee before commenting like this. thid is he link below. https://www.jeeadv.ac.in/performance-in-xii.html | askiitians.com | 2021.31 | [
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"text": "rectified",
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9f23e655a29f16675ee53548bf3aba9f | why is natural water not considered safe for drinking? write in short. | askiitians.com | 2021.31 | [
{
"text": "the natural water is not considered safe for drinking because it is contaminated with many impurities that comes naturally and also in the form of different chemicals from industries. it is contaminated by release of sewage and toxic chemicals from industries which causes threat to aquatic life and if humans drinks contaminated water they are prone to water borne diseases like typhoid, cholera, dysentery, jaundice etc .",
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"text": "×ffgrgjkjvbggsmhqmnbghhjjdbkcnlg jniljh fbc hem and haw are you doing today my life yeyurhruruehehehrh the icon next to the icon next to the icon next to",
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35758c2b33c11ff3e01be9cd631ec827 | the only force actin on a 2 kg canister is 5n..the canister has an initial velocity u=4i and v=6j....how much work is done onthe canister by the 5n force? | askiitians.com | 2021.25 | [
{
"text": "hey shivanshi is the answer to dis ques 20j or 0j. i am getting both answers..........is any of them right???",
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274f1802e063f80d014f23f30a4452d2 | determine if the following are in proportion. 15, 45, 40, 120 | askiitians.com | 2021.25 | [
{
"text": "dear student 15, 45, 40, 120 15 / 45 = 1 / 3 40 / 120 = 1 / 3 hence, 15: 45 = 40:120 ∴these are in a proportion thanks",
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54a2b1c1564d0726459ad4db4d22e888 | how can you classify solids on the basis of the nature of the forces between the constituent particles? | askiitians.com | 2021.25 | [
{
"text": "on the basis of the nature of forces between the constituent particles solids can be classified into four: (1) molecular solids they can be further classified into three: (i) non polar molecular solids here atoms or molecules are held together by weak dispersion or london forces eg;h 2 , i 2 , etc. (ii) polar molecular solids here molecules are held together by dipole-dipole interactions eg; solid nh 3 , solid so 2 , etc. (iii) hydrogen bonded molecular solids here molecules are held together by strong hydrogen bonding eg; h 2 o, hf, etc. (2) ionic solids here ions are held together by coulombic or electrostatic forces . eg; nacl, zns, etc. (3) metallic solids here constituent particles are held together by metallic bonding eg; fe, ag, etc. (4) covalent or network solids here atoms are held together by covalent bonding eg;graphite, diamond, etc. hope you understand my answer. please approve if my answer finds useful",
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"text": "please approve if my answer is correct.",
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bab611ca292bf706871e467c0d1015fd | the radius of curvature of a thin plano-convex lens is 10 cm (of curved surface) and the refractive index is 1.5. if the plane surface is silvered, then it behaves like a concave mirror of focal length (a) 10 cm (b) 15 cm (c) 20 cm (d) 5 cm | askiitians.com | 2021.39 | [
{
"text": "(a) the silvered plano convex lens behaves as a concave mirror; whose focal length is given by if plane surface is silvered 1/f=2/f\\_1 +1/f\\_m",
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"text": "this the answer regarding your problem thanking you for your question regards ankit singh manit bhopal 3 year student forum answer expert @ askiitians",
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803797302916d6c62cb743c5656e48b8 | what is combination and permutation as difference of order give me example and what benefit | askiitians.com | 2021.39 | [
{
"text": "dear rajan, we consider order in permutation but not in combination because in permutation we arrange r objects in n places and in combination we select r objects out of n objects example let us suppose we have three objects a , b, c now if we have to arrange this in three places we can arrange (a , b, c) ,(a , c , b) , (b , a, c),(b , c, a),(c , a, b),(c , b, a) these are the number of arrangements so it is permutation and we consider all the arrangement differently now if we have to select all three so we dont have consider the order 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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6687f10f524701a34e515ffdf4f153f3 | i am expecting to get mechanical in it bhu and ism and civil and chemical in bits, pilani. which college and branch should i prefer ? | askiitians.com | 2021.43 | [
{
"text": "dear aarush, all the option that u have mentioned are good in terms of placement and future scope.. the first thing i ll advise is go with your choice of branch .... and if you neutral for both, then i ll advise you to go for bits pilani. if you find any question difficult to understand - post it here and we will get you the answer and detailed solution very quickly. all the best. askiitians expert vijay luxmi",
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6ce80c57ffc0bdef95cfe78098ee7326 | if a=2^(1/3) - 2^(1/3) then find the value of2a^3 + 6a -3 | askiitians.com | 2021.43 | [
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"text": "dear arnav as you see that a = 2^(1/3) - 2^(1/3) = 0 hence 2a³ +6a -3 = 2 *0 + 6 *0 -3 = -3 regards arun (askiitians forum expert)",
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"text": "but the answer is 0 (all all all for do all do all em so taking so ye we ye an ye so it do it do ye to you soon so ye we it do is to get the in i'm ok with do) sorry for all this because i need to type more than 100 char",
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d93648993ec503067c914c40731ee077 | is jee hard for non-iitians? | askiitians.com | 2021.21 | [
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"text": "well nothing’s hard if you work hard enough. no one’s born an iitian, some people focus a lot and work harder and get into iits while others don’t. the difference lies in the approach taken up by the student. so if you work very very hard and study religiously, you’ll get through :) but you have to focus on the concepts and basics, don’t just mug everything up and hope to clear jee. that’s not how it works, you have the put your efforts in the right direction and i’m certain you’ll score well :)",
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c05f0623f792cadbcbdf9cc86f8fd94f | one year ago, mayank's income was 25% more than the income of prateek. prateek got 5% increment in his income while due to poor performance, mayank's income got decreased by 10%. now by how much percent the income of prateek is less than the income of mayank? | askiitians.com | 2021.39 | [
{
"text": "dear student let us assume that, 1 year ago income of prateek was rs.100x . then, 1 year ago, mayank income = 25% more than 100x = (125 *100x)/100 = rs.125x . now, prateek present income = 5% increase than 100x = (105 * 100x)/100 = rs.105x and, mayank present income = 10% decrease than 125x = (90 * 125x)/100 = rs.112.5x therefore, prateek present income less than mayanak = 112.5x - 105x = rs.7.5x . hence, % = (7.5x * 100) / 112.5x =6.67%(ans.) thanks",
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578657d636bf62fc17be3fc58d31a008 | out of arihant and mtg which one should i refer to qualify bitsat xam?? i want to chose the book which completely covers the bitsat syllabus. i also have grb aieee physics and op tandon books for inorganic and organic chem,. r these sufficient? plz help me!! | askiitians.com | 2021.25 | [
{
"text": "according to me , you should use mtg. bcoz you can get variety of problems in mtg . i used mtg.",
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06f7ba0d6bcaa7f4dfc3178232aae1d2 | if cos square a + cos square b + cos square c + 2 cos a × cos b × cosc= 1 if a + b + c = 180 degree | askiitians.com | 2021.25 | [
{
"text": "solving rhs 2cosacosbcosc =(2cosacosb)cosc =(cos(a+b) + cos(a-b))cosc =cos(pi-c)cosc + cos(a-b)cos(pi-(a+b)) =-2cos^2c - 2cos(a+b)cos(a-b) =-cos^2c - cos^2a + sin^2b so, 1 - 2cosacosbcosc = 1 + cos^2c + cos^2a - sin^2b = 1 - sin^2b + cos^2c + cos^2a = cos^2b + cos^2c + cos^2a",
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"text": "dear student, please find below the solution to your problem. 2cosacosbcosc =(2cosacosb)cosc =(cos(a+b) + cos(a-b))cosc =cos(pi-c)cosc + cos(a-b)cos(pi-(a+b)) =-2cos^2c - 2cos(a+b)cos(a-b) =-cos^2c - cos^2a + sin^2b so, 1 - 2cosacosbcosc = 1 + cos^2c + cos^2a - sin^2b = 1 - sin^2b + cos^2c + cos^2a = cos^2b + cos^2c + cos^2a thanks and regards",
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c3eec133c242970506debc395f6bad6e | i from bangalore and i’m interested in persuing a career in artificial intelligence. i already know 6 programming languages. i don’t know which engineering to opt for and which college will offer good quality education in a.i. i’m going to write my mains in 2015 | askiitians.com | 2021.31 | [
{
"text": "you should opt computer science in top iits for good ai education. sher mohammad faculty askiitians",
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7c64b5795a4b83b2aae3f97b3d599372 | what is the field of dipole? | askiitians.com | 2021.43 | [
{
"text": "so far we have discussed the field of magnetic dipole only at the point on the axis. now we consider the complete magnetic dipole field. in the case of the electric dipole, a complete patter of field lines was discussed earlier. that can be compared with the field lines for a current loop shown in given figure. you can see a great similarity between patterns of field lines outside the loop. another similarity between the electric and magnetic dipole fields is that both vary as r -3 when we are far from the dipole. a significant difference between electric and magnetic field lines is that electric field lines start on positive charges and end on negative charges, whereas magnetic field lines always from closed loops. figure shows:- (a) the electric field of an electric dipole (b) the dipole magnetic field of a current loop. (c) the dipole magnetic field of a bar magnet. the dashed lines show the field lines inside the magnet. figure shows the field lines of a bar magnet. it shows the same pattern of field lines as the current loop, so a bar magnet can also be considered to be a magnetic dipole. it is convenient to label the two ends of a bar magnet as the north (n) and south (s) poles, with field lines leaving the n pole and converging on the s pole. superficially the poles may seem to behave like the positive and negative charges of an electric dipole. however, close inspection of the figure shows that the field lines do not start and end on the poles but instead continue through the interior of the magnet, again forming closed loops. the n and s poles do not behave like the charges in an electric dipole, and as we discuss earlier, isolated magnetic poles do not appear to exist in nature.",
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8743fd127bf9bd9e3597f8ba6e93ef13 | sir, which rank is more preferable if you want to shift to cse in ms or mtech? electical or mathematics and computing? thank you | askiitians.com | 2021.43 | [
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"text": "maths and computing is more near to cs, it has same course structure as of cse. sher mohammad faculty askiitnas b.tech iit dlehi",
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2b8f162ca71f75950f28f4b7b0278901 | my rank in jee is obc 2141, which r the best courses i can get ? and in which iits ? | askiitians.com | 2021.43 | [
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"text": "hi, 1) in new iities you may get civil meta thank you",
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12426869ff1487d48999480d9a85f737 | 13. find the sum of first 15 multiples of 8. | askiitians.com | 2021.43 | [
{
"text": "the multiples of 8 are 8, 16, 24, 32… the series is in the form of ap, having first term as 8 and common difference as 8. therefore, a = 8 d = 8 s15 = ? by the formula of sum of nth term, we know, sn = n/2 [2a+(n-1)d] s15 = 15/2 [2(8) + (15-1)8] = 15/2[6 +(14)(8)] = 15/2[16 +112] = 15(128)/2 = 15 × 64 = 960",
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829b2de612d50a304e1de2b2ff1e4dc4 | i m interested in cosmology. i have cracked iit.i want to go in iit only.which branch in iit will be helpful if i want to pursue ms in cosmology(astrophysics)??? | askiitians.com | 2021.25 | [
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"text": "iit bombay has been rated as the best program in india under thephysics and astronomysection by the qs world university rankings, 2015.",
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bbc5b764265e082b8e5886c1d85d6921 | 1/cosx+3(1/2)sinx dx answer 1/2logtan(x/2+pie/3) | askiitians.com | 2021.31 | [
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"text": "dear ritu i will give you a general method for this problem. as the coefficients are not very clear in the problem. see the pic for the solution all the best. akash goyal askiitiansexpert-iitd please feel free to post as many doubts on our discussion forum as you can. we are all iitians and here to help you in your iit jee preparation. 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..",
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37426934fbd372afec3efaf33d7dafa5 | name the property under multiplication used in each of the following. -19/29 × 29/-19 = 1 | askiitians.com | 2021.39 | [
{
"text": "dear student -19/29 × 29/-19 = 1 multiplicative inverse is the property used in this equation. thanks",
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09c2731b6f5700d998a4efd732112ed2 | let a and b be two symmetric matrices of order 3. statement – 1 : () a ba and ( ) ab a are symmetric matrices. statement – 2 : ab is symmetric matrix if matrix multiplication of a and b is commutative. | askiitians.com | 2021.43 | [
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"text": "hello student, i am not able to interpret your query. please write down the problem clearly so that i canprovide you the meaningful answer. thanks and regards shaik aasif askiitians faculty",
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cc2f5b4e3f50a163a2de74c5ece1f66d | i want to take online coaching in askitians . what is price of scra | askiitians.com | 2021.31 | [
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"text": "hi, it depends for how many months you want to take, please call on (0091-120)-4616500 for mre details regards",
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9059901d791e37bf1d045b0d010f510d | z1 and z2 are two complex numbers such that mod of z1=mod of z2 then (a).z1=z2 (b).z1 not equal to z2 (c) z1 not equal to -z2 (d) none of these | askiitians.com | 2021.25 | [
{
"text": "(b) because only their mod are equal that means only their distance from origin will be equal not their direction.. so they are not equal plzzzzz approve my answer by clicking on yes below!!!!",
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2f072db7f049fc9fe98b6a73808c8667 | can agrobacterium tumifaciens be used as vector in monocot plants???? | askiitians.com | 2021.21 | [
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"text": "as monocots are not susceptible to tumour formation by a. tumefaciens , it is generally believed that the ti plasmid can be used as a vector for dicotyledonous plants only",
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ea4365646b0a387a552c9b6e356e8827 | hello sir i want to know that with a rank around 4500 what kind of branch will i get in cusat i have given its entrance for engineering this year. please tell me fast my counselling is soon | askiitians.com | 2021.43 | [
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"text": "dear anirban , you have good chances of getting the good branch.. check out the last year cutoff: cochin university of science & technology admission 2009-last ranks last rank admitted 2009 civil engineering seat category last rank admitted ce1f etb 15564 ce1f gen 10521 ce1f ksc 22277 ce1f lcc 11294 ce1f msm 13034 ce1f obh 12829 ce1p chd 20531 ce1p etb 19390 ce1p gen 15180 ce1p kmb 11389 ce1p ksc 22945 ce1p kst 22967 ce1p msm 16386 ce1p nri 22522 ce1p obh 18529 ce1p obx 8859 ce1p phc 21398 ce1p spq 18030 computer science & engineering cs1f etb 20118 cs1f gen 16555 cs1f ksc 22911 cs1f msm 19812 cs1f obh 18694 cs1p etb 22126 cs1p gen 13662 cs1p ksc 22971 cs1p lcc 18077 cs1p nri 19653 cs1p obh 20551 cs2f etb 19087 cs2f gen 22983 cs2f ksc 22975 cs2p gen 1135 electronics & communication ec1f etb 7358 ec1f gen 4305 ec1f kmb 5269 ec1f ksc 22145 ec1f kst 19250 ec1f msm 10120 ec1f obh 4920 ec1f obx 10542 ec1f phc 14136 ec1p chd 4996 ec1p etb 13448 ec1p gen 2256 ec1p ksc 22985 ec1p lcc 9777 ec1p msm 13156 ec1p nri 7791 ec1p obh 9632 ec1p phc 7803 ec2f etb 19494 ec2f gen 11453 ec2f kmb 19272 ec2f ksc 22935 ec2f msm 16426 ec2f obh 15221 ec2f obx 16830 ec2f phc 20889 ec2p gen 22655 ec2p obh 15983 ec2p spq 18062 electrical & electronics ee1f etb 15006 ee1f gen 8910 ee1f ksc 22652 ee1f lcc 11822 ee1f msm 10856 ee1f obh 15701 ee1f phc 19370 ee1p etb 21558 ee1p gen 16423 ee1p ksc 22789 ee1p msm 18160 ee1p nri 21488 ee1p spq 9321 ee2f etb 16765 ee2f gen 18982 ee2f ksc 23033 ee2f msm 21464 ee2f obh 19142 ee2p gen 23018 instrumentation inst aiq 8807 inst etb 18387 inst gen 17288 inst kmb 20674 inst ksc 23007 inst msm 19280 inst obh 20528 information technology it1f gen 23006 it1f msm 20870 it1p ain 5812 it1p gen 21872 it1p ksc 22864 it2p gen 18288 mechanical engineering me1f etb 7922 me1f gen 4542 me1f kmb 11942 me1f ksc 22253 me1f lcc 6817 me1f msm 6705 me1f obh 6931 me1p chd 20081 me1p etb 11450 me1p gen 1472 me1p ksc 22877 me1p kst 21954 me1p msm 15303 me1p nri 22335 me1p obh 15182 me1p spq 9843 me2f etb 17735 me2f gen 12619 me2f ksc 22951 me2f msm 13945 me2f obh 12967 me2p etb 16018 me2p gen 16991 me2p ksc 22958 me2p msm 19059 me2p nri 19323 me2p obh 19980 marine engineering mr1f etb 2706 mr1f gen 2464 mr1f ksc 13504 mr1f msm 3985 mr1f obh 13819 mr1p gen 6390 mr1p lcc 16709 mr1p msm 10090 mr1p nri 8471 mr1p obh 14514 mr1p spq 7588 msc photonics phot aiq 5867 phot etb 12282 phot gen 9379 phot ksc 22066 phot obh 11742 polymer sceince & rubber tech psrf aiq 8924 psrf etb 20183 psrf gen 18972 psrf ksc 22833 psrf msm 22730 psrf obh 20052 safety & fire engg sf1f etb 16721 sf1f gen 11579 sf1f ksc 22858 sf1f msm 15384 sf1f obh 19775 sf1p etb 3812 sf1p gen 250 sf1p ksc 22913 sf1p lcc 18189 sf1p msm 13866 sf1p nri 9147 sf1p obh 4230 sf1p spq 13735 ship technology shpf aiq 112 shpf etb 2469 shpf gen 282 shpf ksc 7799 shpf msm 913 shpf obh 3877 shpf spq 5226",
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5a53d33d863836557dd9f3d5628b823a | a river flows south east at 10 km/hr and a boat flows upon it with its bow pointed in the direction of travel.a man walks upon the deck at 2 km/hr in a diection to the right and perpendicular to the direction of the boat movement. calculate the absolute velocity of the man. | askiitians.com | 2021.43 | [
{
"text": "square root of 2 2 + 10 2 ans- 10.2",
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"text": "let a and b be the vectors perpendicular to each other. magnitude of a = 10 kmph magnitude of b = 2 kmph angle=90 therefore resultant velocity = sqrt(a 2 +b 2 +2abcos(theta)) cos 90 o = 0 puttin' the values we get : sqrt104 = 10.19 kmph (approx). ans : 10.198 kmph hope it helps. good luck!",
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3f71bcbc825dc1dce5c08dd6cc7d0a88 | origin is the centreof circle passing through the vertices of an equilateral triangle whose median is 3a then equation of circle is | askiitians.com | 2021.31 | [
{
"text": "dear student, centroid of triangle = origin which divides median in the ratio 2:3 . therefore radius = 2a equation of circle is given by x^2 + y^2 = 4a^2 . cheers!! regards, vikas (b. tech. 4 th year thapar university)",
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06cfed8c66c16fc094ea5571c5989673 | cannot understand anything | askiitians.com | 2021.21 | [
{
"text": "hello student it seems as you have problem in chemistry. it you find it difficult to understand the chemistry , i would advise you to undergo the ncert book number of times and try to understand the concepts. aftaer that try to solve the problems given in book. you can also take help of our study material; which is totally free. still you face any problem, then please post your doubts here.",
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3e4c451d6f46809eb4d70eb4c4795cfd | sholud i do mba with btech or only btech?if only btech then should i join in india or overseas?what r gud companies for electrical ?when should i start my mba prep?with mba and iit what is average package that i could get? | askiitians.com | 2021.21 | [
{
"text": "hi pratik , if you interested to get into a techie job and work in a role of an engg. then you can stick to b.tech and may be later go for m.tech for specialisation . whereas if you want to go for a managerial job then i wud suggest you to go for mba affter b.tech which will open avenues for you as a manager . feel free to post as many as doubts you have we wud be happy to help . all the best !!! anshul",
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c79b0658f6e8e07d20bff99de134da85 | 4[x]=x+{x} []= greatest int.; {}= fractional part solve for exact values of x. | askiitians.com | 2021.39 | [
{
"text": "dear aditya, the slope of the secant line that passes through the endpoints is: m = ?y/?x = [f(6) - f(1)]/(6 - 1) = [(6 + 4/6) - (1 + 4/1)]/5 = 1/3. by the mvt, there does exist a c ∈ (1, 6) such that f'(c) = 0. by re-writing f(x) = x + 4/x as x + 4x^(-1) and differentiating gives: f'(x) = 1 + (4)(-1)x^(-2) = 1 - 4/x^2 = (x^2 - 4)/x^2. then, f'(c) = (c^2 - 4)/c^2. setting f'(c) = 1/3: (c^2 - 4)/c^2 = 1/3 ==> 3(c^2 - 4) = c^2, by cross multiplying ==> 2c^2 - 12 = 0 ==> c = -√6 and c = √6. then, since 1 < c < 6, c = √6 ≈ 2.449. best of luck plz approve the answer...!!!! cracking iit just got more exciting,it’s not just all about getting assistance from iitians, alongside target achievement and rewards play an important role. askiitians has it all for you, wherein you get assistance only from iitians for your preparation and win exciting gifts by answering queries in the discussion forums. reward points 5 + 15 for all those who upload their pic and download the askiitians toolbar, just a simple click here to download the toolbar…. so start the brain storming…. become a leader with elite expert league askiitians thanks aman bansal askiitian expert",
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1238a032b57c833d7a4f815a533033e1 | can i gt a seat in jee after securing 162/401 in jee 2012 | askiitians.com | 2021.25 | [
{
"text": "you cant get a seat in jee after securin 162 marks because you are in genral cetegry if you get above then 200 marks there will chancege",
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c0d7223c29972acbc8b73869d7364f3f | please give me solution for the question in the image | askiitians.com | 2021.25 | [
{
"text": "let the new coeficient of linear expansion be k. α let the temp is increased and change in temp. be t sum of individual expansion of two rod = expansion of combined rod .. l αt(1+4)=3.x.l.t.α => x= 5/3 so new coefficient of linear expansion is 5/3α.",
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] |
|
5bb2a373e2cfb9475c268ec573621f28 | should i take drop for iit jee 2011 . i ve not qualified it this time & i ve no expectations from aieee too | askiitians.com | 2021.43 | [
{
"text": "dear harshita, taking drop is not a bad idea provided you study with full commitment and study smartly,... please feel free to post as many doubts on our discussion forum as you can. 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",
"name": "",
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}
] |
|
824ee39788a43ae951b2276fb8628527 | consider the self inductance per unit length of a solenoid at its centre and that near its ends. which of the two is greater? | askiitians.com | 2021.31 | [
{
"text": "self inductance(l)=flux/current through it.in a solenoid,magnetic lines through center n edge is the same . so is the current . therefore,it might be equal.",
"name": "",
"is_accepted": false
}
] |
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726787839a0bb6e0c48cdf51f970525a | a patient in a hospi.ta.l is given soup daily in a cylindrical bowl of diameter 7 cm. if the bowl is filled with soup to a height of 4 cm, how much soup the hospital has to prepare daily to seroe 250 pati.ents? 22 (7'2)2 | askiitians.com | 2021.31 | [
{
"text": "volume of soup for one patient = 7 x x4 ems = 154 cm3 volume of soup for 250 patients = 250 x 154 cm3 = 38500 cm3 = 38.5 l.",
"name": "",
"is_accepted": false
}
] |
|
dcc3f9c047e066797f5441061b75fd67 | sir whether mechanical engg. branch in iit roorkee is better or cse branch in iit bhu? thanks | askiitians.com | 2021.25 | [
{
"text": "cs at any iit except the new ones are better than any other branches at any other iits/ so go blindly for bhu cse",
"name": "",
"is_accepted": false
}
] |
|
f06937de9d8185e71e0f2c32b9619aab | with heartfull gratitude, sir i want to know sir that the real time of preparation for iit jee is during class xi and class xii or not.sir whether one cannot produce good rank after class xii by dropping or not. yours faithfully sagar kandpal | askiitians.com | 2021.25 | [
{
"text": "you can get a ggod rank even aa a fresher ( +2) if u have right kind of preparation. but not all studnets can make it in their first attempt. so its not bad if u drop one year in my view as most of the students in are 1 year droppers. dont worry about it, prepare well for iit and if u cant make it in your first attemopt and if u r so desparate abt getting into iit go for 2nd attempt. wish u all the best regards ramesh",
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}
] |
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8e8dcfa9a4bd8e6c654d5c14e426718a | i got 205 marks in iit-jee 2011 .i come under obc category. what is the expected rank and which branch will i get? | askiitians.com | 2021.21 | [
{
"text": "dear student, please have a look: predicted iit jee 2010 rank predicted rank marks 1-500 more then 305 500-1000 285-305 1000-2000 254-285 2000-3000 237-254 3000-4000 223-237 4000-5000 214-223 5000-6000 206-214 6000-7000 198-206 7000-8000 192-198 8000-9000 185-192",
"name": "",
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}
] |
|
814884090e42df03536b709063de2b95 | the number of bonded electrons pairs that are present in octahedral sf 6 molecules will be? | askiitians.com | 2021.21 | [
{
"text": "bonded electrons pairs that are present in octahedral sf 6 molecules will be 6 bcoz each fluorine atom is bonded to sulphur atoms in sf6 sulphur has 0 lone pair approve if useful",
"name": "",
"is_accepted": false
},
{
"text": "bonded electrons pairs that are present in octahedral sf 6 molecules will be 6 bcoz each fluorine atom is bonded to sulphur atoms in sf6 sulphur has 0 lone pair approve if useful",
"name": "",
"is_accepted": false
}
] |
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1fca77421d6ea29f6fe06e97e2371206 | sir i hv gt admission in sri bhagwan mahavir jain college of engg. and i m also gettin all ip colleges..bt sir sbmjce has been recognised as one of the fastest growing colleges in karnatka...and ranks 17th in karnatka..it is counted as 1 of the best colleges in karnatka region..it is aicte approved..bt ip is also good.so sir which college shd i go for.. | askiitians.com | 2021.25 | [
{
"text": "i know that sri bhagwan mahavir jain college is growing gowing very fast and also in 3-4 years it will be counted in list of good colleges. but ip is very old univ also its colleges are also very old which have a very reputed image in market for a long time. so if you look other way, the companies which come for placements definitly go first to a renouned college than a new college. also, because of so old college, ip, many companies prefer to go there rather than go to sbmjce, although which is fast growing college, and recruite students from there so, it would be better that you take admission in ip colleges and have a good future which is waiting for you.",
"name": "",
"is_accepted": false
}
] |
|
b30e3dbeb16a2cfc8a2f81f6ea5d3b8a | if 10g of the ice at 0 degree celcius is mixed with 10g of water at 100 degree celcius ,then the final temperature of the mixture will be | askiitians.com | 2021.25 | [
{
"text": "latent heat of fusion of ice = 336 j/gspecific heat of water = 4.186 j/g degreecfirst 10g ice melts and then its temperature increases by gaining heat from 100g water. let the resultant temperature is t.energy gained by 10g ice = energy lost by 10g water10*(336) + 10*4.186*(t-0) = 100*4.186*(100-t)3360 + 41.86 t ….. find t from here that will be the required answer",
"name": "",
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}
] |
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3be085bf5cbb18abe46dba29ef9ecf76 | in any fission process, the ratio (a) equal to 1 (b) greater than 1 (c) less than 1 (d) depends on the mass of the parent nucleus | askiitians.com | 2021.21 | [
{
"text": "(c) binding energy per nucleon for fission products is higher relative to binding energy per nucleon for parent nucleus, i.e., more masses are lost and are obtained as kinetic energy of fission products. so, the given ratio.",
"name": "",
"is_accepted": false
}
] |
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e5b9807a6597924090723e69e842eadf | why josaa is not giving me a good college and branch even up my air in jee main is 4800 and obc 786.i also filled desired choice at the time of choice filling. | askiitians.com | 2021.31 | [
{
"text": "hii the choice that you have filled might not be available for you at your rank . and it also depends upon the decreasing order in which you have filled your priority.",
"name": "",
"is_accepted": false
}
] |
|
8fd7a61b223915d79e8153a88467cafe | also give the solution of the previous que`s.. | askiitians.com | 2021.43 | [
{
"text": "ok............",
"name": "",
"is_accepted": false
}
] |
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fe1e8ed8050413a6b34087217df31401 | in a test abha gets twice the marks as that of palak. two times abha's marks and three times palak's marks make 280. if palak gets x marks, abha gets marks. | askiitians.com | 2021.39 | [
{
"text": "dear student from the question it is given that palak gets x marks and abha gets twice the marks as that of palak. then, abha gets 2x marks. thanks",
"name": "",
"is_accepted": false
}
] |
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945457401f1a32c3a48f0e6a010b71ae | the plane x+2y+z = 6 cuts x,y,z axes at a,b,c . (alpha,beta,gamma) is the circumcentre of triangle abc then alpha+gamma = | askiitians.com | 2021.31 | [
{
"text": "dear student point of intersections are x axis 6,0,0 y axis 0,3,0 z axis 0,0,6 circumcenter (6/3 , 3/3, 6/3) regards",
"name": "",
"is_accepted": false
}
] |
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600c2e165dde9f4a86551751eb3c74e3 | hi everyone! i know i may be presumptuous here but i know this for sure that if anyone know about the cutoffs it wud b u guys rather than some people guessing it!!! so if u hv any idea abt the cutoffs for cs in gate 2011 plz do tell me. thnx in adv!! | askiitians.com | 2021.25 | [
{
"text": "dear student, cut off for gate cs 2011 will be around 25-30 marks but to get admission in good iit your score should be above 40... 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",
"name": "",
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] |
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449fab507948a9cbc32e991eaa67c849 | if water contains dissolved calcium hydrogencarbonate, out of soaps and synthetic detergents which one will you use for cleaning clothes ? | askiitians.com | 2021.43 | [
{
"text": "synthetic detergent will be useful because they can work well with hard water containing calcium hydrogen carbonate.soaps are 100% biodegradable i,e donot create water pollution whereas detergents create water pollution because they are nonbiodegradable",
"name": "",
"is_accepted": false
},
{
"text": "synthetic detergent will be useful because they can work well with hard water containing calcium hydrogen carbonate.soaps are 100% biodegradable i,e donot create water pollution whereas detergents create water pollution because they are nonbiodegradable",
"name": "",
"is_accepted": false
}
] |
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ba6aa806c0ac0115e584aa5f84594c95 | in which range wavelength of electromagnetic wave employed for space communication lie. | askiitians.com | 2021.39 | [
{
"text": "dear student the answer is 1mm to 30 km regards",
"name": "",
"is_accepted": false
}
] |
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2f07894c5472eb6e460995c26ec6b697 | (d/dx)((2x)/(3x))? what is the value of this a)1 b)2/3 c)0 d)3/2 | askiitians.com | 2021.21 | [
{
"text": "0 is the answer.. i am damn sure 0 is the answer.. hey i am fillin g this as rubbish because i have to have 100 characters.. anyways it is 0 because 2x/3x is 2/3.. derivative of constant is 0",
"name": "",
"is_accepted": false
},
{
"text": "here the answer is zero because here 2x/3x here x and x is cancel so after here 2/3 so the answer is 0",
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}
] |
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ad7296207008121d2711d0844092fdbf | in a meter bridge experiment,when a nicrome wire is in right gap the balancing length is 60cm,when nicrome wire is strectched to increase its length by 20%,and again connected in right gap.the new balancing length is | askiitians.com | 2021.43 | [
{
"text": "when a nicrome wire is in right gap the balancing length is 60cm,when nicrome wire is strectched to increase its length by 20%,and again connected in right gap.the new balancing length is new adjusting length = (60+ (.2 x60) ) =63 cm",
"name": "",
"is_accepted": false
}
] |
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449faf5789bd52f293f72767628329a3 | a person can swim instillwater at 5kmph.he aims on one bank of river at an angle of 30 0 with normal to the flow to reach opposite point of start in 1/√3hr the width of the river is--km | askiitians.com | 2021.21 | [
{
"text": "dear g somaiah he reaches at the apposite end of the rever then his horizontal component of speed must be equal to the velocty of the river vertical componen of velocit =5cos30 = 5√3 /2 km/h now time teken to cross the river = 1/√3 hr so 1/√3 = d /5√3 /2 d=5/2 km 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 badiuddin",
"name": "",
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}
] |
|
f0db807068f4e3e61b0fc54927983952 | how to calculate the pairs of starigh line from second degree curves | askiitians.com | 2021.31 | [
{
"text": "the general equation of second degree can be written as: ax²+2hxy +by²+2gx+2fy+c=0.......(1) this equation can represent a pair of straight lines if: abc +2fgh-af²-bg²-ch²=0..............(2) the given equation is: 2x²+5xy +3y²+6x+7y+4=0 so a=2,b=3,c=4,f=7/2,g=3 and h=5/2 putting these values in lhs of eqn(2) 2 ×3 ×4 + 2 × (7/2) × (3)(5/2) - 2 × (7/2)²- 3 × (3)²-4 × (5/2)² =24+105/2 – 49/2 -27 -25 =24+(105-49)/2-52 = -28+(56/)/2 =-28+28 thus we get abc +2fgh-af²-bg²-ch²=0 δ=0 thus the given quadratic expression represents one pair of straight lines",
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}
] |
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d36460518ac5de5af991ec314b46d0ce | 10. an express train takes 1 hour less than a passenger train to travel 132 km between mysore and bangalore (without taking into consideration the time they stop at intermediate stations). if the average speeds of the express train is 11 km/h more than that of the passenger train, find the average speed of the two trains. | askiitians.com | 2021.43 | [
{
"text": "let us say, the average speed of passenger train = x km/h. average speed of express train = (x + 11) km/h given, time taken by the express train to cover 132 km is 1 hour less than the passenger train to cover the same distance. therefore, (132/x) – (132/(x+11)) = 1 132(x+11-x)/(x(x+11)) = 1 132 × 11 /(x(x+11)) = 1 ⇒ 132 × 11 = x(x + 11) ⇒ x2 + 11x – 1452 = 0 ⇒ x2 + 44x -33x -1452 = 0 ⇒ x(x + 44) -33(x + 44) = 0 ⇒ (x + 44)(x – 33) = 0 ⇒ x = – 44, 33 as we know, speed cannot be negative. therefore, the speed of the passenger train will be 33 km/h and thus, the speed of the express train will be 33 + 11 = 44 km/h.",
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}
] |
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94ac6f175ac4c95c6c6983ca8fe40fa6 | identify the part which vibrates to produce sound in the given instrument. sitar | askiitians.com | 2021.31 | [
{
"text": "dear student stringsisthe part which vibrates to produce sound in sitar thanks",
"name": "",
"is_accepted": false
}
] |
|
c5e8a2d605d5206b4dfdf60cd9d2bb0e | hi sir i have to prepare for aipmt re exam in 1 month and i want to crack aipmt exam this year itself. i’m totally confused . i belong to ur and my score is around 250 in previous exam . pls give me some ideas about how to prepare just in 1 month | askiitians.com | 2021.39 | [
{
"text": "go to the formulas and previous years question papers if possible, in physics try, g c aaggarwal, chemistry o p tandon... biology, may be a trueman publisher book..",
"name": "",
"is_accepted": false
}
] |
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b996328115e7df192dfae018154fa603 | the predominant intermolecular forces present in ethyl acetate, a liquid, are: a london dispersion, dipole-dipole and hydrogen bonding b hydrogen bonding and london dispersion c dipole-dipole and hydrogen bonding d london dispersion and dipole-dipole | askiitians.com | 2021.31 | [
{
"text": "dear student the predominant intermolecular forces present in ethyl acetate liquid is london dispersion and dipole-dipole interaction. ethyl acetate is a polar molecule, therefore, dipole-dipole interaction will be present there. hence, option d is correct.",
"name": "",
"is_accepted": false
},
{
"text": "dear student, the predominant intermolecular forces present in ethyl acetate liquid is london dispersion and dipole-dipole interaction. ethyl acetate is a polar molecule, therefore, dipole-dipole interaction will be present there. hence, option d is correct. thank you.",
"name": "",
"is_accepted": false
},
{
"text": "answer is (3) molecule. hence there will be dipole-dipole attraction and london dispersion forces are present",
"name": "",
"is_accepted": false
},
{
"text": "the predominant intermolecular forces present in ethyl acetate liquid is london dispersion and dipole-dipole interaction. ethyl acetate is a polar molecule, therefore, dipole-dipole interaction will be present there. hence, option d is correct.",
"name": "",
"is_accepted": false
},
{
"text": "the predominant intermolecular forces present in ethyl acetate liquid is london dispersion and dipole-dipole interaction. ethyl acetate is a polar molecule, therefore, dipole-dipole interaction will be present there. hence, option d is correct. may help u",
"name": "",
"is_accepted": false
}
] |
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fbb1fa7c0669f09c4d5acb311ba2c43e | do you think it is better to use compost instead of chemical fertilisers? why? | askiitians.com | 2021.39 | [
{
"text": "compost is definitely better than chemical fertilizers.few reasons - it is easier to prepare and is environment friendly as it does not pollute environment. it conserves our environment by decomposing biodegradable waste into natural soil. fertilizers on the other hand are harmful for our health and environment. thanks & regards, dinesh sajnani askiitians faculty",
"name": "",
"is_accepted": false
},
{
"text": "compost is better over fertilizers bcause : do not pollute the soil and water gives soil shape makes soil porous doesnt make salt acidic or basic allows growth of farmers friends : earthworms provides humus",
"name": "",
"is_accepted": false
}
] |
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535b583a4643a6ad6bc96a2a8443b46d | ques 1- the quadratic eq.. x2 - 6x + a = - have 1 root in common . the other root of the 1st nd 2nd eq are in the ratio 4:3 then the common root is a 4 b 3 c 2 d 1 ques 2 - if x 2 +px+1 is a factor of the expressin ax 3 +bx + x = x then , a a 2 + c 2 = - ab b a 2 -c 2 = - ab c a 2 -c 2 = ab d n.o.t ques 3- if the eq... (m-n)x2 + (n-l)x + l -m = 0has equal roots the l , m nd n satisfy (a) 2l= m+n (b) 2m= n+l (c) m= n+l (d) l=m+n ques 4- 1/x+p + 1/x+q = 1/r if it has equal roots same in magnitude but opposite in sign then the product of the roots will be a (p 2 +q 2 )/2 b -(p 2 +q 2 )/2 c (p 2 -q 2 )/2 d -(p 2 -+q 2 )/2 ques 5- all the values of m for which both roots of the equation x 2 - 2mx + m 2 -1 = 0 are greater that -2 but less than 4, lie in the interval (a) -2 (b) m3 (c) -1 (d)1 | askiitians.com | 2021.21 | [
{
"text": "dear student please ask single question in a thread , it will be easier for us to ans. good luck cheers",
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}
] |
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4e5234bbcc677c3c4896b6e9a4c04f3a | what sre quadrinal angles?how to find them?is it related to trigonimetry? | askiitians.com | 2021.43 | [
{
"text": "dear student, quadrilateral has four sides, so with this four sides four angles can be formed internally. if abcd is a quadrilateral, then four angles will be a, b c and d. finding these angles, it depends upon the givien information. but you must remember that for any quadrilateral, sum of the interier angles a + b + c + d = 360 o and yes, sthese can be easily related to trigonometry because quadrilateral can be easily divided into two triangles. thanks.",
"name": "",
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}
] |
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0fafa65cce50e2115c45741811b6baa2 | i got 7900 in aieee...........do i hv ny chance f getting mech/eee/ece at nit allahabad/dtu or better??????? i m frm bihar(gen). | askiitians.com | 2021.25 | [
{
"text": "hii you can fill them up in the list of your preferences .although the chances are very feeble there but you must not loose hope n make sure that you gget into the counseling process so that you will get the seat which you like . best of luck",
"name": "",
"is_accepted": false
}
] |
|
4af66d6aead2bedcaf33edc19a41b0ca | which of the following numbers is divisible by 11? (a) 1011011 (b) 1111111 (c) 22222222 (d) 3333333 | askiitians.com | 2021.39 | [
{
"text": "dear student the rule to check the divisibility of a number by 11is, find the difference between the sum of the digits at odd places (from the right) and the sum of the digits at even places (from the right) of the number. if the difference is either 0 or divisible by 11, then the number is divisible by 11. so,checking all options, options c is correct 2–2 + 2 - 2 + 2–2 + 2–2 = 0 thus, 22222222 is divisible by 11. thanks",
"name": "",
"is_accepted": false
}
] |
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ee45891fa99cc7fb2473be42ea540cd9 | i got metallurgy and material science with mtech in ceramics and composites in iit bombay, should i take it or take cse in nit. also tell me the scope of this branch and expected packages and placement. or should i go for second allotment . i afraid in 2nd allotment i will get other iit most probably madras mtech civil or aerospace mtech kharagpur. please guide me. | askiitians.com | 2021.21 | [
{
"text": "dear mayank. metallurgy of iitb is the best and just grab the opportunity and take it...there are excellent pay packages offered...you will get many opportnities to go abroad as well.. 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 [email protected]",
"name": "",
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}
] |
|
11b05cc969319fefe53e7afb2f76b120 | can i get free recorded classes for iitjee ............ | askiitians.com | 2021.31 | [
{
"text": "for the whole iitjee preperation no one uploads complete lectures for free. but, if you have doubts in a particular topic you can search videos for it in youtube",
"name": "",
"is_accepted": false
}
] |
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0f8b01e669149e97e4470047e05928d5 | prove that cos 2[cot^-1(root 1-x/1+x)] +x = 0 ‘please ans asap | askiitians.com | 2021.25 | [
{
"text": "dear student there seems to be an error in the question kindly post the question’s proper source",
"name": "",
"is_accepted": false
},
{
"text": "you kanika kapoor in the graph of mod doesnt take negative values of the particle doesnot depend on the mass if you beautiful stage then find the differential equation associated to make electric kanika kapoor in hot compilation then evaluate all rhe option c",
"name": "",
"is_accepted": false
}
] |
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47a5f4f323082a5d1b0b29f09a22a612 | two persons a and b are rolling a die on the condition that the person who gets 3 will win the game. if a starts the game, then find the probabilities of a and b respectively to win the game. | askiitians.com | 2021.39 | [
{
"text": "hello student, p=probability of getting 3=1/6 q=1-p=5/6 probability success (p) = 1/6 probability of failure (q) = 5/6 a may win the game either in i trail or in iii trial or in v trial etc. probability of a win = p + q. q. p + q. q. q. q. p + … =p/(1-q 2 )=6/11. ∴ probability of b’s win = 1 – p(a) =5/11 thanks and regards shaik aasif askiitians faculty",
"name": "",
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}
] |
|
1b76740d154d3d265fa8acba34ea4ee2 | what do you mean by the term hymenopterophily,anthropology, malacophily? | askiitians.com | 2021.43 | [
{
"text": "hymenopterophily is pollination of flowers by bees.anthropology is the study of human races and their evolution.malacophily is pollination of flowers by snails.",
"name": "",
"is_accepted": false
}
] |
|
da236ee8a70a5511ec14a9e0c93e5ce4 | the am of the series 1,3,9,27,81,..........,3 n is: please reply fast | askiitians.com | 2021.43 | [
{
"text": "dear ashwin as there are n+1 terms hence a.m = 3^0 + 3¹ + 3² + 3³ +.......+3n /(n+1) = 1 (3 n+1 -1) /2(n+1) regards arun (askiitians forum expert)",
"name": "",
"is_accepted": false
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] |
|
c809e6fbd33ff1899a05c8142a5e94fb | a magnetic field of 3.6t is applied to a paramagnetic gas. the atoms of the gas have magnetic dipole moment of 4.5*10^-23 j/t. at what temperature will the mean transitional kinetic energy of an atom of the gas equal to the energy required to change the alignment of atoms magnetic dipole from antiparallel to parallel(to the magnetic field) | askiitians.com | 2021.31 | [
{
"text": "dear student,energy required to change orientation=nmb (- cos 180 – cos 0) = 2nmb = 10.8 * 10^-23 this is equal to mean translational kinetic energy=3/2 nk t = 10.8 * 10^-23 now find t",
"name": "",
"is_accepted": false
}
] |
|
6f480c9f02f5e7fd5e4b477506091d31 | godevening sir i have got 4055 rank in iit jee in general category and scored 351 marks in bitsat and also got 1926 in aieee (overall) but now i m in a dilema to think where to go.is there any scope in new iits and what is in new iits and bits and in new and old iit which branch i can get | askiitians.com | 2021.25 | [
{
"text": "dear parvesh, well you could get any of the branch of your wish at bits as the last year cutoff for comp.sc. at bits pilani was just 349. refer the link below for last year cutoff : - www.askiitians.com/engineering-exams/bitsat/bitsat-cutoffs regarding you aieee rank you wont be making to the best nits i.e. warangal or trichy so better dont opt for that. refer to the link below for last year cutoff : - www.askiitians.com/aieee-counselling/aieee-engineering-counsellings.aspx your jee rank is not good enough to fetch you any course at old iits. this rank will provide you either mechanical or other department lower than this at it-bhu or any courses at new iits. as the latter are just made they dont have enough exposure and proper administration or proper management system. the faculty also there are less and they have to suffer a lots of lodging problems as they are mentored by the older iits. bits pilani comes 5th on the national ranking og best engineering collegeeven better than some of the iits. the branch you would be getting there is also the best. so dont think and take admission into pilani, that would be the best and the safest option for you to pursue your career. thank you.",
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|
de8c91de08cf50ec6cfa80daf256937f | 4. is the following situation possible? if so, determine their present ages. the sum of the ages of two friends is 20 years. four years ago, the product of their ages in years was 48. | askiitians.com | 2021.43 | [
{
"text": "let’s say, the age of one friend be x years. then, the age of the other friend will be (20 – x) years. four years ago, age of first friend = (x – 4) years age of second friend = (20 – x – 4) = (16 – x) years as per the given question, we can write, (x – 4) (16 – x) = 48 16x – x2 – 64 + 4x = 48 – x2 + 20x – 112 = 0 x2 – 20x + 112 = 0 comparing the equation with ax2 + bx + c = 0, we get a = 1, b = -20 and c = 112 discriminant = b2 – 4ac = (-20)2 – 4 × 112 = 400 – 448 = -48 b2 – 4ac < 0 therefore, there will be no real solution possible for the equations. hence, condition doesn’t exist.",
"name": "",
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] |
|
7a0a5d6766ee8f50c4cf3b432c33fbe2 | i had written online aieee exam...but it didn't show the score.. how can i know my online test score??? reply soon. | askiitians.com | 2021.21 | [
{
"text": "hiii you can write a mail to the central counseling board to get in your score claiming your identity .if everything seem fit and fine you will get your score .",
"name": "",
"is_accepted": false
}
] |
|
3ac6f528046c004758227c71a1b8f1f3 | a car travelling at 60km/h overtakes another car travelling at 42km/h. assuming each car to be 5.0m long,find the time taken during the overtake and the total road distance used for overtake. | askiitians.com | 2021.21 | [
{
"text": "a car traveling at 60 km/hr overtakes another car traveling at 42 km/hr. assuming each car to be 5.0 m long, find the time taken during the overtake and the total distance used for the overtake : find the time (in seconds) required to pass the car change 5 m to km: 5/1000 = .005 km is the length of the car : time = * 3600 = 10 seconds : find the distance required to accomplish the pass * 60 * 1000 = 166 meters'' approve!",
"name": "",
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},
{
"text": "given the 1st car travelling with 60kmph=50/3 m/s ,velocity of second car =42kmph=35/3 m/s now length of each car =5m=s/2=>s=10m in solving this prob we have to use concept of relative velocity i.e., rel. velocity of 1st car w.r.t. 2nd car = v 1 -v 2 =50/3-35/3=5m/s t=s/v=10/5=2seconds now distance used= distance travelled by 1st car during 2 seconds, s=vt=50/3x2=33.3m",
"name": "",
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}
] |
|
a2bd5d5d01ba1b3e35635b1a3ac152fd | the equation 9x^3 + 9x^2y - 45x^2 = 4y^3 + 4xy^2 - 20y^2 represent three straight lines, two of which passes through origin. then find the area of the triangle formed by these lines . | askiitians.com | 2021.39 | [
{
"text": "9x^3+ 9x^2y -45x^2-4y^3-4xy^2+20y^2 =0 9x^2(x+y-5) - 4y^2(x+y-5) =0 (9x^2-4y^2) (x+y-5) =0 (3x+2y)(3x-2y)(x+y-5)=0 so equation are 3x +2y=0, 3x-2y=0,x+y-5=0 on solving these equation you will apply the formula for calculating area of triangle from three given points. my answer is 30 sq. units.",
"name": "",
"is_accepted": false
},
{
"text": "9x^3+ 9x^2y -45x^2-4y^3-4xy^2+20y^2 =0 9x^2(x+y-5) - 4y^2(x+y-5) =0 (9x^2-4y^2) (x+y-5) =0 (3x+2y)(3x-2y)(x+y-5)=0 so equation are 3x +2y=0, 3x-2y=0,x+y-5=0 on solving these equation you will apply the formula for calculating area of triangle from three given points.",
"name": "",
"is_accepted": false
}
] |
|
e6af69e694e2fb420e42104d1d3ab86c | dear iitians, define what is an ampere’s law with equation. | askiitians.com | 2021.39 | [
{
"text": "dear suresh, ampere's law states that for any closed loop path, the sum of the length elements times the magnetic field in the direction of the length element is equal to the permeability times the electric current enclosed in the loop. all the best and try to improve by using askiitians.",
"name": "",
"is_accepted": false
},
{
"text": "hello suresh, ampere’s law means that for any closed loop path, the sum of the length elements times the magnetic field in the direction of the length element is equal to the permeability times the electric current enclosed in the loop .",
"name": "",
"is_accepted": false
},
{
"text": "dear suresh ampere's law states that for any closed loop path, the sum of the length elements times the magnetic field in the direction of the length element is equal to the permeability times the electric current enclosed in the loop.",
"name": "",
"is_accepted": false
},
{
"text": "ampere`s law states that for any closed loop path, the sum of the length elements times the magnetic field in the direction of the length element is equal to the permeability times the electric current enclosed in the loop.",
"name": "",
"is_accepted": false
}
] |
|
7c84218a9a396c517fab306ce7129140 | which of following oxyacids of phosphorus r monoprotic(monobasic) h3po4 h3po3 h3po2 h4p2o7 and why??????????????? | askiitians.com | 2021.25 | [
{
"text": "dear raj, h 3 po 2 is the only monobasic acid hop(o)h 2 exists in equilibrium with the minor tautomer hp(oh) 2 . sometimes the minor tautomer is called hypophosphorous acid and the major tautomer is called phosphinic acid. 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 suryakanth –iitb",
"name": "",
"is_accepted": false
}
] |
|
fabaef1d00ae1b6f1ca8c5d6f8c202a0 | a particle confined to motion along x axis moves with a constant accelaration fro x=2m to x=8m during the 2.5secs time interval. the velocity of particle at x=8m is 2.8m/s. what is the accelaration during this time interval? | askiitians.com | 2021.25 | [
{
"text": "make use of newtons 1, 3 equation t=2.5, s=6, v=2.8 v= u+a(2.5) --(i) v^2= u^2+2a(6)---(iii) using equation i and ii we get (v+u )=24/5= 4.8 when v= 2.8 the the initial velocity of the particle is 2m/s usin i equation acceleartion is 0.8/2.5 = 8/25 = 0.32m/s^2",
"name": "",
"is_accepted": false
}
] |
|
054992bf2cc109921c4ff6dcf5d06a19 | the number of possible selections of one or more questions from 20 questions when each question has an alternative is | askiitians.com | 2021.25 | [
{
"text": "hi ujjwal, your question is not clear, please elaborate!",
"name": "",
"is_accepted": false
}
] |
|
e481122956bf0a9564fba1b2a908a5f5 | 4. find two consecutive positive integers, sum of whose squares is 365. | askiitians.com | 2021.43 | [
{
"text": "let us say, the two consecutive positive integers be x and x + 1. therefore, as per the given questions, x2 + (x + 1)2 = 365 ⇒ x2 + x2 + 1 + 2x = 365 ⇒ 2x2 + 2x – 364 = 0 ⇒ x2 + x – 182 = 0 ⇒ x2 + 14x – 13x – 182 = 0 ⇒ x(x + 14) -13(x + 14) = 0 ⇒ (x + 14)(x – 13) = 0 thus, either, x + 14 = 0 or x – 13 = 0, ⇒ x = – 14 or x = 13 since, the integers are positive, so x can be 13, only. ∴ x + 1 = 13 + 1 = 14 therefore, two consecutive positive integers will be 13 and 14.",
"name": "",
"is_accepted": false
}
] |
|
271eb7189b8afe91bec03eb0ef489e27 | sleeping sickness happens due to which reason . please ans. | askiitians.com | 2021.25 | [
{
"text": "dear student sleeoing sickness occurs due to trypanosome . trypanosomes are unicellular parasitic protozoa belonging to the trypanosoma genus of the trypanosomatidae class (protozoa kingdom). hope this heps good luck",
"name": "",
"is_accepted": false
},
{
"text": "sleeping sickness is caused by two types of parasites trypanosoma brucei rhodesiense and trypanosomoa brucei gambiense. t b rhodesiense causes the more severe form of the illness. tsetse flies carry the infection. when an infected fly bites you, the infection spreads through your blood",
"name": "",
"is_accepted": false
}
] |
|
26b710fa968c79de921d3203b31b114c | according to gauss’s law for magnetism a magnetic monopole cannot exist as tghe no of field lines going out of the surface should be equal to the number of field line going into it.but according to p.m dirac there is a possibilty for the existence of a magnertic monopole in accordance to the laws of string theory,how can this be validated in reference to gauss law,then what is the contradiction to gauss law? | askiitians.com | 2021.25 | [
{
"text": "as charge is quantized, according to gauss’s law the net flux enclosed by a surface, the summation should be zero. which is the contradiction here as the flux lines are radial and hence passing through the surface bt they are not returning back hence there must be the existence of magnetic monopoles here.",
"name": "",
"is_accepted": false
}
] |
|
5de0d6b1620aa82430d516f79c67dbcf | an electric generator actually acts as (a) a source of electric charge. (b) a source of neat energy. (c) an electromagnet. (d) a converter of energy. | askiitians.com | 2021.31 | [
{
"text": "answer: d",
"name": "",
"is_accepted": false
}
] |
|
b52122a41470b95fcb1d7dd2b39b3942 | is bits pilani hyd a good option??...i hav heard its improving....plz rply... | askiitians.com | 2021.25 | [
{
"text": "yes, it is an good option anshool but also try for better colleges then that, you know what are better ioptions for you regards",
"name": "",
"is_accepted": false
}
] |
|
8543e59b0078e3b38bc4c87a9e0bac18 | a small sphere of mass m and carrying a charge q is attached to one end of an insulating thread of length ‘a’, the other end of which is fixed at (0,0) as shown in the figure. there exists a uniform electric field in the region. the minimum velocity which should be given to the sphere at (a ,0 ) in the direction shown so that it is able to complete the circle around the origin is ( there is no gravity) | askiitians.com | 2021.43 | [
{
"text": "dear student, the net force acting on the sphere would be given by: here the force due to the electric force results into a centripetal force due to which the sphere would move in a circular path. regards sumit",
"name": "",
"is_accepted": false
}
] |
|
7c710a4158994ac3ed91ff0e7af50f62 | when 1-pentyne (a) is treated with 4n alcoholic koh at 175°c, it is converted slowly into an equillibrium mixture of 1.3% 1-pentyne (a), 9.5% 2-pentyne (b) and 3.5% of 1.2-pentadiene (c) .the equillibrium was maintained at 175°c. calculate δg° for the following eqilibria. b ↔ a, δg°1=?? b ↔ c, δg°2=?? from the calculated value of δg°1 & δg°2 indicate the order of stabiity of (a), (b), & (c). write a reasonable reaction mechanism showing al intermediates leading to (a), (b) & (c). | askiitians.com | 2021.31 | [
{
"text": "dear student, gibbs free energy (g) - the energy associated with a chemical reaction that can be used to do work. the free energy of a system is the sum of its enthalpy (h) plus the product of the temperature (kelvin) and the entropy (s) of the system: free energy of reaction ( g) the change in the enthalpy ( h) of the system minus the product of the temperature (kelvin) and the change in the entropy ( s) of the system: standard-state free energy of reaction ( g ) the free energy of reaction at standard state conditions: standard-state conditions the partial pressures of any gases involved in the reaction is 0.1 mpa. the concentrations of all aqueous solutions are 1 m. measurements are also generally taken at a temperature of 25 c (298 k) 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",
"name": "",
"is_accepted": false
},
{
"text": "thnku",
"name": "",
"is_accepted": false
}
] |
|
73686293dfa6649670b1b55ece099a1d | sir, if a bond is formed or bond is broken then energy is released or absorbed . explain the reason for this ? | askiitians.com | 2021.39 | [
{
"text": "when a bond is formed, energy is absorbed and when a bond is broken, energy is released. this is because there is a certain amount of energy stored in a bond due to which the elements are held together. hence, when a bond is broken, that energy is released.. please approve!!",
"name": "",
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}
] |
|
9a5f1df82fa734716f9bcab3fb092d59 | sir/mam i am expecting 260 in aieee 2010 .i am non delhit .can i get dce. please provide last opening and closing rank of dce. | askiitians.com | 2021.21 | [
{
"text": "i hope the doubt has been cleared till now. if your brother,sister or any other known person who is preparing for iit entrance exam or neet, you can tell him / her about askiitians. i hope the doubt has been cleared till now. if your brother,sister or any other known person who is preparing for iit entrance exam or neet, you can tell him / her about askiitians. our mission at askiitians * helping students meet the challenges while preparing for iit jee and other engineering entrance examinations * bringing the classroom to students’ desktop * creating a mass-platform where iitians and aspirants dreaming to enter iit can connect thanks * helping students meet the challenges while preparing for iit jee and other engineering entrance examinations * bringing the classroom to students’ desktop * creating a mass-platform where iitians and aspirants dreaming to enter iit can connect thanks",
"name": "",
"is_accepted": false
}
] |
|
5d4e4dab292a76bbef92c73286f0cd1b | why doesdrosophila used extensively in the study of genetics ?give three points. | askiitians.com | 2021.21 | [
{
"text": "dear student ....drosophila is extensively used for biochemical and genetic work . the reasons are (1) they are easy to keep and work with .they can be easily grown on a ripened banana....(2) drosophila has a short life cycle and produces large number of offsprings. therefore , it is easy to study various generations of it ....(3) drosophila has a small genome size .it has manageable number of chromosomes i.e., only 4 pairs .so it is easy to study their genomes.......with regards ...mahima...(askiitians forum expert )",
"name": "",
"is_accepted": false
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|
23c0dfba387ed11c76e1e0c958f281ba | q. 20 iit 1997 answer is c. as p = 1/3 density v^2, p is proportional to t/m, then it should be d but given answer is c | askiitians.com | 2021.21 | [
{
"text": "assuming both the gases are ideal gases we can say thatpv/t = constantand thuspv/t = p’v/2t=>p’ = 2p which is option c",
"name": "",
"is_accepted": false
}
] |
|
adb3e677d8236336e570ebed5a06d839 | a train is moving along a straight line with a constant acceleration ‘a’. a boy standing in the train throws a ball forward with a speed of 10 m/s, at an angle of 60 ° to the horizontal. the boy has to move forward by 1.15 m inside the train to catch the ball back at the initial height. the acceleration of the train, in m/s 2, is ? | askiitians.com | 2021.31 | [
{
"text": "ball performs parabolic motion, for vertical motion, s = u t − 2 1 g t 2 ∴ 0 = 1 0 s i n 6 0 o t − 2 1 × 1 0 × t 2 ∴ t = 3 s for horizontal motion, s = u t + 2 1 a t 2 ∴ 1 . 1 5 = 1 0 c o s 6 0 o × 3 − 2 1 a ( 3 ) ∴ a = 5 m / s 2",
"name": "",
"is_accepted": false
},
{
"text": "uy=10sin 60=53√m/s ⇒ t=2uyg=2×53√10=3√s sx=uxt+12axt2 1.15=5×t−12a×t2 1.15=5×3√−32a 3a2=5×1.73−1.15=8.65−1.15 3a2=7.5 ⇒ a=153=5m/s2",
"name": "",
"is_accepted": false
}
] |
|
fb8748fd7ac9ee2be05d25543407e515 | why is tungsten not used as a fuse wire? | askiitians.com | 2021.21 | [
{
"text": "tungsten is not used as fuse wire because it has a high melting point and if we use it the definetly the fuse will not work and in case of high voltage the bulbs and appliances will get fused.",
"name": "",
"is_accepted": false
}
] |
|
a0a588bc61f048d1f27a08c58b7cf8f3 | which one of the following statements is correct with respect to kidney function regulation? 1. during summer when body loses lot of water by evaporation, the release of adh is suppressed 2. when someone drinks lot of water, adh release is suppressed 3. exposure to cold temperature stimulates adh release 4. an increase in glomerular blood flow stimulates formation of angiotensin ii | askiitians.com | 2021.39 | [
{
"text": "sol: when someone drinks lot of water which is not required by his body, the osmolarity of the blood will decrease. the decrease in osmolarity will inhibit the release of adh. adh not released dct becomes less permeable to water, and excess of water is eliminated. answer: (2)",
"name": "",
"is_accepted": false
}
] |
|
1fcc581dc1ab4289deb49f11837a3d87 | what does relative effect the melting point of mercury? | askiitians.com | 2021.43 | [
{
"text": "relativity states that objects get heavier the faster they move. in atoms, the velocity of the innermost electrons is related to the nuclear charge. the larger the nucleus gets the greater the electrostatic attraction and the faster the electrons have to move to avoid falling into it. so, as you go down the periodic table these 1s electrons get faster and faster, and therefore heavier, causing the radius of the atom to shrink. this stabilises some orbitals, which also have a relativistic nature of their own, while destabilising others. this interplay means that for heavy elements like mercury andgold, the outer electrons are stabilised. in mercury’s case, instead of forming bonds between neighbouring mercury atoms, the electrons stay associated with their own nuclei, and weaker interatomic forces such as van der waals bonds hold the atoms together.",
"name": "",
"is_accepted": false
}
] |
|
7dc66456e8f6ae5d2672bb13642a1964 | the maleness of a child is determined by [ncert exemplar problems] (a) the x chromosome in the zygote (b) the y chromosome in zygote (c) the cytoplasm of germ cell which determines the sex (d) sex is determined by chance | askiitians.com | 2021.31 | [
{
"text": "answer: b",
"name": "",
"is_accepted": false
}
] |
|
4c5e985894f66324ce59ea779e31529a | iface prob in inorganic...so please. help me out | askiitians.com | 2021.21 | [
{
"text": "what problem you are faced is not mentioned here so how can help you but one thing inorganic chemistry the properties of every element has to be remember next time i hope that you mentioned which problem you faced in inorganic chemistry then i should help you",
"name": "",
"is_accepted": false
}
] |
|
ffc01195acfeec95774c836364831ddc | explain why the following are made of thermosetting plastics. saucepan handles | askiitians.com | 2021.31 | [
{
"text": "dear student the handles of a saucepan are made of thermosetting plastic because it is a bad conductor of heat and does not get heated up while cooking. thanks",
"name": "",
"is_accepted": false
}
] |
|
284f2e85b3a8dcff96ffcbec7e54118c | sir, can you please explain me concepts of hyperconjugation amd resonance and also stability due to resonance and back bonding | askiitians.com | 2021.21 | [
{
"text": "dear sarvesh, i would like to tell you that you are all over talking about factors that increase the stability of a molecule. hyperconjugation effect is found in those molecules which contain atoms having free electrons so they can easily make more and more pie and sigma bonds where as resonance is just a simple word use to explain different shapes or isomers of molecule (which has same molecular formula but different position of atoms in it). stability increases due to resonance and back bonding as atoms withing molecule are free to move inside its own molecule so they do not prefer go outside untill extreme conditions are given. thus stability is proportional to resonance. (hope you understood)",
"name": "",
"is_accepted": false
}
] |
|
946d8e72e2f79f2c46ea78d4c43731b9 | the jee exam is less than 3 weeks away and i am getting very tensed as i have not prepared properly. can you please help me in scoring at least 230-280. what are the most helpful topics that i can concentrate on now? | askiitians.com | 2021.39 | [
{
"text": "dear shrisha, the best thing with you now is that, you have nothing to loose. time is gone. everythings bad! accept it! and motivate yourself. things can be best for you if you plan your daily study. dont go for marathon study. understand that time is less, so try to solve past year papers. get connected with an expert and ank important parts of syllabus. getting tensed is a display of being responsible. calm yourself and take one topic at a time. all the best! regards,sid",
"name": "",
"is_accepted": false
},
{
"text": "lets me put it in a better way.. i am reaaly good at calculus, integration and coordinate geometery. and chemistry is also quite easy for me.. the only problem for me is physics!.. so please help me in physics at least!",
"name": "",
"is_accepted": false
},
{
"text": "dear sirisha, it is difficult to score dis much in jee but still u can study some good material. jee is all about concepts so concentrate well on them try studying only ncert. solve as many sample papers as you can of good publisher, work hard work smart!!!! all the best!!!!!",
"name": "",
"is_accepted": false
},
{
"text": "dear sirisha, now only revise your topics relax yourself. cracking iit just got more exciting,it s not just all about getting assistance from iitians, alongside target achievement and rewards play an important role. askiitians has it all for you, wherein you get assistance only from iitians for your preparation and win by answering queries in the discussion forums. reward points 5 + 15 for all those who upload their pic and download the askiitians toolbar, just a simple to download the toolbar…. so start the brain storming…. become a leader with elite expert league askiitians thanks aman bansal askiitian expert",
"name": "",
"is_accepted": false
}
] |
|
dd0f21040a83262558e3aa9da4e1ecc4 | give briefly the isolation of magnesium from sea water by the dow process. give equations for the steps involved. | askiitians.com | 2021.21 | [
{
"text": "in sea water mg exists as mgci 2 . on treating sea water wit slaked lime mg(oh) 2 is obtained. mgci 2 + ca(oh) 2 → mg(oh) 2 ↓ + caci 2 in sea water slaked lime on reacting mg(oh) 2 with hci, mgci 2 is obtained. mg(oh) 2 + 2hci → mgci 2 + h 2 o from mgci 2 , mg is obtained by reduction of mgci 2 with caci 2 . mgci 2 + cac 2 → mg + caci 2 + 2c",
"name": "",
"is_accepted": false
}
] |
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