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a8a72f85abad9caf34dfeb1e254ce74c | a bird was flying in a line parallel to the ground from a height of 2000 meters. tom ,standing in the middle of the field observes a bird forming an angle of elevation 30 degree after 3 minutes he again observed it making an angle of elevation45 degree .find tge speed of the bird in kilometer per hour | askiitians.com | 2021.31 | [
{
"text": "i think the question is wrong.... as when the bird will go away, the angle of elevation should decrease instead of increasing",
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"is_accepted": false
}
] |
|
840a37769c157128d9f67cb3a67c4f87 | describe the types of non-motile spores found in rhodophyceae red algae. | askiitians.com | 2021.25 | [
{
"text": "algae perform asexual reproduction with the help of spores. chlorophyceae aka green algae produces both planospores(motile) e.g. zoospores(flagellated) aplanospores(non motile) e.g. akinetes phaeophyceae aka brown algae forms only planospores i.e. all are zoospores rhodophyceae aka red algae only forms aplanospores",
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}
] |
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af8aa53f1699d92d815cb8495cb96857 | the kth term of the series is given by 2 k 3 k the sum of first 100 terms ? | askiitians.com | 2021.25 | [
{
"text": "dear hamid kth term tk = 6^k hence sum = sk = 6^1 + 6^2 + ….. + 6^k hence sum of 100 terms = s = 6 *(6^100 – 1) / (6 – 1) = (6^101 – 6 )/ 5",
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}
] |
|
a112a93a084a8785ab5df5bb748c4ab0 | prove that 1/cos 290+1/root 3.sin 250=4/root 3 | askiitians.com | 2021.25 | [
{
"text": "1/cos290+1/root3.sin250 =1/sin20 -1/root3.cos20 =root3cos20-sin20/root3.sin20.cos20 =4.(sin60co20-cos60sin20)/root3.2sin20cos20 [multiply and divide by 4] =4sin40/root3.sin40= 4/root3 thanks & regards sunil raikwar askiitians faculty",
"name": "",
"is_accepted": false
},
{
"text": "=1/sin20 -1/root3.cos20=root3cos20-sin20/root3.sin20.cos20=4.(sin60co20-cos60sin20)/root3.2sin20cos20 [multiply and divide by 4]=4sin40/root3.sin40= 4/root3",
"name": "",
"is_accepted": false
},
{
"text": "cos(290)=cos(270+20)=sin20 sin(250)=sin(270-20)= -cos20 therefore,1/cos290+1/root3.sin250=1/sin20-1/root3.cos20 =root3.cos20-sin20/root3.sin20*cos20 (by cross multiplying) =2(root3/2cos20-1/2sin20)/(1/2*root3.2sin20cos20) (2sin20.cos20=sin40) =2(sin60.cos20-cos60.sin20)/(1/2*root3.sin40) (sin60.cos20-cos60*sin20=sin40) =4sin40/root3.sin40= 4/roo3",
"name": "",
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}
] |
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81c18e06a65efcf38d46d92fb1e5bbd1 | <p>an electron is rotating around an infinite positive linear charge in a circle of radius of 0.1 m , if linear charge density is 1 micro coulomb per meter, then velocity of electron in m/s is? . . . . . pls help as soon as possible</p> | askiitians.com | 2021.25 | [
{
"text": "hi mohmmed you can imagine the postive linear charge as vertical rod and electron moving around it in a circle horizontaly. the image uploaded might help in visualization. now you know that there will be a force of attraction among the opposite charges and also since electron is revolving in a circle ,there will be a centrifugal force(repulsive) acting on it. these forces will be equal and opposite and thus will form the equation. electrostatic force will be, f1 = qe (where q is electron,1.6*10^-19 and e is electric field due to infinte linear charge ) e = λ (per unit charge) = 1.7974*10^4 2 ∏ ε and centrifugal force, f2 will be fiven by = mass * velocity^2 / radius mass of electron : 9.1 * 10^-31 radius (given)= 0.1 equating these two forces , we get v = 1.78 * 10^8 .",
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3640f032406f854de64a26510647699b | with a score of 210-215 what rank i may get? with this score can i get some good iit? pl reply urgently as i am confused. | askiitians.com | 2021.39 | [
{
"text": "please click the link given below for the iit cut off : http://www.askiitians.com/iit-jee-2010-cut-offs.aspx please check your opening and closing rank: http://www.askiitians.com/iits-2009-2010-opening-and-closing-rank.aspx last year cuttof was 4588 -7152. and the lowest marks was 185 . so this year depending upon the difficulty of paper you have chance to get this cource. thanks and all the best !!!",
"name": "",
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}
] |
|
4f1ffe578ae743aa1bcf60a5317a60a3 | tertiary structure of protein does not contain one of the following structure di-sulphide bond van der walls bond hydrogen bond salt linkage | askiitians.com | 2021.25 | [
{
"text": "hello student correct answer is 4. salt linkage tertiary structure is stabilized by several types of bonds, hydrogen bonds, ionic bonds, van der waal’s interactions, covalent bonds, hydrophobic bonds.",
"name": "",
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}
] |
|
348d2743e2f4ac44892833a58d1c29e4 | aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa | askiitians.com | 2021.39 | [
{
"text": "dear student your question is not clear and is not related to academics. thanks",
"name": "",
"is_accepted": false
}
] |
|
f4a703ea1c7dc991ef650058d9b58d5d | i am now in 11 and i want to know that what subjects are needed to attempt aieee exam. i have got computer science in 11 so in aieee i can get maths, physics, computer science or i need to give pcm for engineering | askiitians.com | 2021.21 | [
{
"text": "now, you have joint entrance examination( for aieee and iit) in which subjects are physics, chemistry and maths.vinti singhaiaskiitians faculty,b.e.( elec & comm), gold medalist.",
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}
] |
|
82da21d52574059a1998d9aa53d1b613 | i am in class 9 please tell the concept behind the pulley problems and river boat problems | askiitians.com | 2021.43 | [
{
"text": "hi, i am very glad that you are concerned for this topis this early. theses are very easy topics when studied by understanding the concept. i will suggest you to buy hc verma book for physics for class 11th anlthough its for 11th, but i am sure that u will be able to understand it due ti its simple and easy to understand language. river boat problem it is a question in which one is given speed of the river generally in horizontal direction. we represent by either ''u'' or ''vr'' the we are given velocity of swimmer in still water assuming that the water is not moving in the river body. there r 2 cases of shortst distance and time. for shortset time the swimmer should swip perpendicular to the river flow so that it gets carrired along with the flow and reach the opposite side as quickly as possible. iit''s formulae is d/vsr where d is the total widtg of the river and vsr is the velocity of swimmer in stil water. for shortest distance he should swim at an angle left towards the vertical if the river is towards right ( flowing ). its formulae is d/vs where we can represent vs and underoot of vsrsquare - vrsquare. i hope this helps. rohit",
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},
{
"text": "concept behind pulleys is just balancing forces and calculating acceleration related with unbalanced forces. post an example for further clarification..",
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] |
|
5f9940e423f11baa78850a37434b9236 | if a = {1, 2, 3, 4 }, define relations on a which have properties of being: reflexive, symmetric and transitive. | askiitians.com | 2021.25 | [
{
"text": "dear student let r = {(1, 1), (1, 2), (1, 3), (2, 1), (2, 2), (2, 3), (3, 1), (3, 2), (3, 3)} r is reflexive as (1, 1) (2, 2) and (3, 3)∈r1 r is symmetric as(1,2),(1,3),(2,3)∈r1→(2,1),(3,1),(3,2)∈r1 thus, r is reflexive, symmetric and transitive . thanks",
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|
9797d6e8c8ae98b61c2c816985205590 | in a discharge tube ionization of enclosed gas is produced due to collisions between (a)negative electrons and neutral atoms / molecules (b)photons and neutral atoms /molecules (c)neutral gas atoms/molecules (d)positive ions and neutral atoms/molecules | askiitians.com | 2021.43 | [
{
"text": "(a) when electron emitted from cathode collide with gas molecules or atoms, they knock out outer electrons and produce positively charged ions. they become part of positive rays.",
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},
{
"text": "(a) when electron emitted from cathode collide with gas molecules or atoms, they knock out outer electrons and produce positively charged ions. they become part of positive rays.",
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5c71149e047c8965c00ac5830b3562e0 | find the no. of solutions for 5/4 cos2 2x+cos4 x+sin4 x+cos6 x+sin6 x=2 | askiitians.com | 2021.43 | [
{
"text": "dear student please write the question in standard notation regards",
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}
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|
7baf8eb7a6b58e68f19df8ef120522a2 | find the integration of cotxlogsinx dx. pls answer as fast as you can. | askiitians.com | 2021.31 | [
{
"text": "let log(sinx)=t differentiate w.r.t “x” cotx dx = dt substitute these values = t 2 /2 put the value of t again = (log(sinx) ) 2 / 2",
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2049e7dc8135cc5f56eb59f167060587 | my aieee all india overall rank is 325038 and obc cat rank is 97394. my karnataka state overall rank is 7680 and obc cat rank is 1637. can i get possibility a seat in engg colleges? | askiitians.com | 2021.21 | [
{
"text": "dear apparao, thrugh ccb counselling yu may get dmission in any private college in the spot round. best of luck 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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0f767ad7389aec401f6b12982e0594a4 | revision plan is all i need iam strong at chemistry and mediocre in maths and physics | askiitians.com | 2021.31 | [
{
"text": "https://www.askiitians.com/iit-jee/main/preparation-tips/jee-in-30-days.html please visit this link",
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] |
|
7952066972933fccc5639ff745a70c8a | if m = 2, find the value of: (5m/2) – 4 if m = 2, find the value of: (5m/2) – 4 | askiitians.com | 2021.43 | [
{
"text": "dear student from the question it is given that m = 2 then, substitute the value of m in the question = ((5 × 2)/2)–4 = (10/2)–4 =5–4 =1 thanks",
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}
] |
|
7817da1789b7ec058d5af12394413a1a | 38. which of the following gases is the main con-stituent of natural gas? (a) methane (b) ethane (c) propane (d) butane | askiitians.com | 2021.31 | [
{
"text": "answer: a",
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379a70777dbe0462a6f7e7cd449e2aeb | in a triangle abc prove that 2r<=(acota +bcotb+ccotc)/3<=r. | askiitians.com | 2021.31 | [
{
"text": "first consider : - ( a cota + b cotb + c cotc ) / 3 r 2r (cosa + cosb + cosc ) / 3 r cosa + cosb + cosc 3 / 2 2 cos(a+b)/2 cos(a-b)/2 + 1 - 2 sin 2 c/2 3 / 2 - 2 sin 2 c/2 + 2 (sinc/2)cos(a - b)/2 - 1 / 2 0 this a quadratic equation in sinc/2 withnegative coefficient of sin 2 c/2 d = b2 - 4ac = 4 cos 2 (a - b)/2 - 4 since cos is always less than 0 therefore the eqauation is always valid with a critical point therefore, ( a cota + b cotb + c cotc ) / 3 r now, 2r 2r (cosa + cosb + cosc) since r = 4rsina/2sinb/2sinc/2 or to prove that 4rsina/2sinb/2sinc/2 r (cosa + cosb + cosc ) / 3 on solving, rhs = ( 4rsina/2sinb/2sinc/2 + 1 ) / 3 consider s-b, s-c and use am gm (s-b + s-c ) / 2 (( s-b )(s-c )) (1/2) / bc a / 2(bc) (1/2) sina/2 similiarly for sinb/2 and sinc/2 therefore, sina/2sinb/2sinc/2 1/8 let sina/2sinb/2sinc/2 = k to prove 4k ( 4k + 1) / 3 or, 12k 4k + 1 or, k 1/8 which is always possible.",
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|
ee817c893435f26cc56d6371bfb69030 | identify the correct sequence of events in the viral replication process. i. eclipse ii. maturation iii. adsorption iv. assembly v. penetration vi. lysis a i → i i → i i i → i v → v → v i b i i → i → i i i → i v → v → v i c i i i → v → i → i i → i v → v i d i i i → v → i → i v → i i → v i | askiitians.com | 2021.31 | [
{
"text": "dear student option c correct. the first step in viral infection is adsorption which includes encounter of the virus to a susceptible host cell and its specific binding to receptor sites on the cell membrane. this is followed by uncoating of the virus by penetration and includes penetration of host cell membrane by a whole virus or its nucleic acid. in the case of endocytosis of the whole virus in a vacuole, the enzymes in the vacuole dissolve the envelope and capsid and the viral nucleic acid is released into the host cytoplasm. penetration is followed by eclipse phase during which viral particles are being replicated and individual viral components are formed and but are not infectious. eclipse is followed by assembly of individual viral components into intact infectious virions which are then released by rupture of host cell i.e. lysis.",
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"text": "answer the first step in viral infection is adsorption which includes encounter of the virus to a susceptible host cell and its specific binding to receptor sites on the cell membrane. this is followed by uncoating of the virus by penetration and includes penetration of host cell membrane by a whole virus or its nucleic acid. in the case of endocytosis of the whole virus in a vacuole, the enzymes in the vacuole dissolve the envelope and capsid and the viral nucleic acid is released into the host cytoplasm. penetration is followed by eclipse phase during which viral particles are being replicated and individual viral components are formed and but are not infectious. eclipse is followed by assembly of individual viral components into intact infectious virions which are then released by rupture of host cell i.e. lysis. this makes option c correct.",
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ef3e959ec200216e7ee4312b19d6f79f | prove that( 1 -sin theta )÷(1 + sin theta) is equals to tan^2(pi by 4 -theta /2) in meritnation | askiitians.com | 2021.43 | [
{
"text": "1-sinθ/1+sinθ1 can be written as sin²θ/2+cos²θ/2and sinθ can be written as 2sinθ/2cosθ/2so 1-sinθ/1+sinθ can be written as sin²θ/2+cos²θ/2-2sinθ/2cosθ/2 divide by sin²θ/2+cos²θ/2+2sinθ/2cosθ/2(cosθ/2-sinθ/2)²/(cosθ/2+sinθ/2)²dividing by cosθ/2 in both side we will get (1-tanθ/2)²/",
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{
"text": "1-sinθ/1+sinθ1 can be written as sin²θ/2+cos²θ/2and sinθ can be written as 2sinθ/2cosθ/2so 1-sinθ/1+sinθ can be written as sin²θ/2+cos²θ/2-2sinθ/2cosθ/2 divide by sin²θ/2+cos²θ/2+2sinθ/2cosθ/2(cosθ/2-sinθ/2)²/(cosθ/2+sinθ/2)²dividing by cosθ/2 in both side we will get (1-tanθ/2)²/ (1+tanθ/2)² it can be written as tan²(pi/4-theta/2)",
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55f400bcfc0d7cfea7b86e29f3fa1d15 | a heat flux of 4000j is to be passed through a copper rod of
length 10cm and area of cross section 100sq.cm. the thermal
conductivity of copper is 400w/mc. the two ends of this rod
must be kept at a temperature difference of | askiitians.com | 2021.25 | [
{
"text": "applying simple formulae",
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"is_accepted": false
}
] |
|
29b66bd0a5280dccd63b4f160eef80ca | 1. let abc be an acute.angled triangle. the circle i with bc as diameter intersects ab and ac again at p and q, respectively. determine angle bac given that the orthocentre of triangle apq lies on circle i. 2. find all primes p and, q such that p divides q2 - 4 and q divides p2 -1. | askiitians.com | 2021.25 | [
{
"text": "dear student please write the question in a standard form or attach an image of the question “2. find all primes p and, q such that p divides q2 - 4 and q divides p2 -1.” kindly ask one question per post regards",
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|
1b44ac3cca51e3d4064754d868a31009 | why there is a negaive sign in work done by potential enrgy of a spring | askiitians.com | 2021.21 | [
{
"text": "i think the problem is in the calculation of your work. the potential energy of the spring is u = 1/2 k x^2 from which you can determine the spring constant.note that potential energy of a spring is always non-negative. the work you are doing to stretch the spring is getting stored in the spring as potential energy. i.e. you are doing work on the block so if you let w be the work done by the spring on the block then u = -w (you are adding energy to the spring while w is like energy released by the spring in the process).",
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0cdb149cf6b5bb695683b0b096b1fe71 | match the items given in column i with one or more items of column ii. column i column ii (a) a plane mirror (i) used as a magnifying glass. (b) a convex mirror (ii) can form image of objects spread over a large area. (c) a convex lens (iii) used by dentists to see enlarged image of teeth. (d) a concave mirror (iv) the image is always inverted and magnified. (e) a concave lens (v) the image is erect and of the same size as the object. (vi) the image is erect and smaller in size than the object. | askiitians.com | 2021.39 | [
{
"text": "column i column ii (a) a plane mirror (v) the image is erect and of the same size as the object. in a plane mirror, the image is formed behind the mirror and the image is at the same distance from the mirror as the object is in front of it. also, the size of the image is equal to that of the object. (b) a convex mirror (ii) can form image of objects spread over a large area? a convex mirror is used as rear view mirrors in vehicles as they form images of objects that spread over a larger area. this mirror helps the drivers to look at the vehicles behind them. (c) a convex lens (i) used as a magnifying glass. a convex lens produces a virtual, erect and enlarged image for the object placed between f and o(optical centre). this image formed is on the same side of the object and is hence used as a magnifying glass. (d) a concave mirror (iii) used by dentists to see enlarged image of teeth. the minute details of teeth examination is facilitated with the help of a concave mirror as it gives a magnified and erect image. light is converged by a concave mirror and when we place the object between the pole and principal focus, concave mirror forms a magnified virtual image. (e) a concave lens vi) the image is erect and smaller in size than the object. a concave lens is also called a diverging lens. the light rays falling on a concave lens always diverge after refraction and forms a virtual, erect and smaller image than the object.",
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aca3372468d7e436789615cd70bc0b61 | a triangle and a parallelogram have the same base and the sam£ area. if the sides of the triangle are 26 cm, 28 cm and 30 cm, and the parallelogram stands on the base 28 cm, find the height of the parallelogram. | askiitians.com | 2021.31 | [
{
"text": "area of parallelogram = area of triangle. ...(i) let h be the height in cm of the parallelogram. sides of the triangle are 26 cm, 28 .cm and 30 cm. 26 + 28 + 30 s = 2 = 42. now, area of the triangle = v'42<42 -26)(42 -28)(42 -30) cm2 = v'42x16 x14x12 cm2 = 336 cm2 area of the parallelogram = base x height = 28 x h from (i), we have substituting the values of areas from (ii) and ( iii ) in (i), we have 28 x h = 336 h = 12 cm. hence, height of the parallelogram = 12 cm.",
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098c2d5dd9fb238498b11de88d005049 | find the number of distinct arrangements of the letters of the word iitjee that can be made preserving the order in which the vowels(i,i,e,e) occur and not counting the original arrangement iitjee | askiitians.com | 2021.43 | [
{
"text": "let us put the vowels in order \\_i\\_i\\_e\\_e\\_ the remaining two letters can be put in either of 5 spaces . so number of ways = 5x5 =25 but when the letters tj is put in same space , we can arrange it in two ways so , there are 5 more ways so now number of ways =25+5=30 dropping the iitjee we have 29 ways .",
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5ad5c8c00c808d9937ff37ccc3a7d33a | describe the ‘greenhouse effect’ in your own words. | askiitians.com | 2021.25 | [
{
"text": "basically, the greenhouse effect means warming of the earth’s environment. when the sun’s ray falls on earth, a part of the radiation that falls on the earth is absorbed by it and a part is reflected back into space. greenhouse gases present in the atmosphere trap these radiations and do not allow heat to leave. this helps in keeping our planet warm and thus helps in survival. co2, methane and co are the gases responsible for this effect.",
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5c66ea5a879ed9d8d1b2b202553fc361 | the frequencies of x-rays, g -rays and ultraviolet rays are respectively a, b, and c. then (a) a < b. b < c (b) a < b, b > c (c) a > b, b > c (d) a > b, b < c | askiitians.com | 2021.25 | [
{
"text": "(b) g rays has lowest wavelength and highest frequency among them while ultraviolet ray has highest wavelength and lowest frequency, order of frequency: b > a > c.",
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b61fcc8fa2c088f8c5ad71569b9161bd | what is the area of vertices of triangle (0,0,0),(2,3,5)&(5,6,9) | askiitians.com | 2021.43 | [
{
"text": "the area of a ? in 3-space can be found by determining ½ of the magnitude of the 'cross-product' of any two of the three vectors, v1, v2, v3 representing the sides of the 3-d ? (i will use the symbol ? to denote a vector, if it is not clear from the context) a(3d?) = ½ | v1 x v2 | ... or ... = ½ | v1 x v3 | ... or ... = ½ | v2 x v3 |, where 'x' denotes 'cross product' any of the three vectors, say for example ?v1 = ?pq, representing one of the sides of the 3-d ?, can be determined by the vector subtraction of the two origin-vertex vectors, ?op – ?oq, which can be easily determined by the subtraction of the corresponding pairs of co-ordinates. v1 = ?pq = ?op – ?oq = v1[-2, -3, –5] v2 = ?pr = ?op – ?or = v2[–5, -6, –9] a(?pqr) = ½ | ?pq x ?pr | = ½ | v1 x v2 | = ½ | [-2, -3, –5]x [–5, -6, –9] | = ½ | [27-30, 18-25, 12-15] | = ½ | [-3, -7, -3] | = ½ √{3² +(7)² + 3²} = ½(8.185) = 4.0925 units 2 thanks and regards shaik aasif askiitians faculty",
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edebc6d3c422b8c01ecf971257fbf040 | can the process of rusting be called combustion? discuss. | askiitians.com | 2021.25 | [
{
"text": "dear student the process of rusting cannot be called combustion because in this process no heat and light is produced. due to this reason iron is not considered as combustible substance. thanks",
"name": "",
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] |
|
33b9f65238f33ed9ef508674e5087fd5 | starting at the origin, a beam of light hits a mirror(in the form of line) at the point a(4,8) and reflected line passes through the point b(8,12), compute the slope of the mirror | askiitians.com | 2021.31 | [
{
"text": "slope of first line = 12-8/8-4 = 1slope of second line = 8-0/4-0 = 2tan(x) = m-1/m+1 (where m is slope of the third line)tan(x) = 2-m/1+2msolving both the equations, we get 3m^2-2m-3 = 0therefore m = 1+(10)^1/2 / 3",
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fec7c98d625e440618188a995d950f41 | thomsons cathode-ray tube experiment demonstrated that (a) the elm ratio of the cathode-ray particles changes when a different gas is placed in the discharge tube (b) cathode rays are streams of negatively charged ions (c) all the mass of an atom is essentially in the nucleus (d) the elm of electrons is much greater than the elm of protons | askiitians.com | 2021.31 | [
{
"text": "(b) cathode rays are streams of negatively charged ions",
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|
9bcc699242b71ad3ddaf1c8af0c5d8c9 | question no 3 | askiitians.com | 2021.31 | [
{
"text": "from first term, tan2a = 2tana/1+tan 2 a so, ½ tan2a= tana/1+tan 2 a i cannot solve it completely because last term is not clearly visible",
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"is_accepted": false
}
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|
719106ad37f4d1c496e65fbf0778690d | i want to persue research in physics later in my life. i have written advanced and nest this year. i can get iiser niser and cebs mumbai. i want help which one to choose. | askiitians.com | 2021.43 | [
{
"text": "niser sounds promising",
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44365c2fe362b681abac5f036b521d9c | a man is standing at a basket ball court . the total area of that court is 10sq ft . so what is the perimeter of that ground | askiitians.com | 2021.21 | [
{
"text": "dear shivani please tell is basketball court square shape or any other shape. for any other shpae, you need to given any one information extra",
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"text": "dear student basket ball court is square shape so length = sqrt(10) perimeter = 4*l perimeter = 4* sqrt(10) good luck",
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{
"text": "area of basket ball court =l 2 10 = l 2 l=root 10 perimeter of basket ball court =4*l perimeter =4*10 1/2",
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08f3e4e87a2ba500cd2110efa3df9b90 | position time graph of a particle moving along straight line is shown which is in the form of semi-circle starting from t = 2 to t = 8 s. select correct statement. | askiitians.com | 2021.31 | [
{
"text": "from graph equation of parabola is x = (t-2)(t-8) x = t 2 – 10t +16 differentiating wrt time v = 2t – 10 – (1) differentiating wrt time a = 2 – (2) frrom equation (1) and (2) it is clear that velocity of particle is oppostite to accelerationfrom t = 2 to t =5 hope it clears. if you like answer then please approve it.",
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0a528928d798e1de55b497a6cab8bfcf | ranked air 14687 in aieee 2011 from up state rnk 1959 can i get nit allahabd with chemcal engg??? nd in which round?? or any other good nits??? | askiitians.com | 2021.21 | [
{
"text": "dear himanshu, the cut-offs for nit allahbad are very high i.e. you need a good rank for admission in nit allahbad. best of luck 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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21248a5af4ad2d5bc1c393c1457f717f | why potential is minimum at the place where electric field is maximum ? incase of a conductor in relation to capacitance (when charges tendd to leak out off the corners of conductor) | askiitians.com | 2021.25 | [
{
"text": "dear student, electric field force is least inside the conduit since electrons in a channel are disseminated in such a way, to the point that they attempt to counterbalance every others impact/charge(q=0)(for unadulterated transmitters e=0). cheers!! regards, vikas (b. tech. 4 th year thapar university)",
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87efa8821fe09ba05ae176ea0cf37bff | wat type of questions r most xpected in iit wat does iit streses on 2 do how 2 prepare in these 20 days best | askiitians.com | 2021.21 | [
{
"text": "dear babu the complexity of the iit-jee arises from the fact that the questions are always unique in their context, and solving them often requires a combination of concepts from across different chapters. you will get understanding if you see the previous year paper. http://www.askiitians.com/iit-papers/iit-jee-papers.aspx its very important time for students.in last days you should not go for any new concept ,and don't refer any new books .just revise your old notes and study material. its time of revision and prractice for speed . solve sample paper at least 1 in 2 days. and while solving the paper in which topic u are not comfortable .then revise important concept and application of those topics from ur notes do not waste your time in solving very difficult question .just refer to those problem and which are purely jee syllabus based.memorise the formulas of different topic. this is very critical moment ,engage urselef atleast 14-15 hour in a day for jee prepration . and in the last 4-5 day just solve previous 6-7 year jee paper and practice the formulas. just stay calm and focus on understanding rather than mugging. 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",
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0dfd1d43ff498b427c0e1f39da1d6cc2 | when adventitious root shows swelling at regular intervals for food storage, it is tubercular root nodulose root moniliform root annulated root | askiitians.com | 2021.43 | [
{
"text": "nodulose root",
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] |
|
f1e2a7f70b4b719f5d203317c25af2d4 | physical | askiitians.com | 2021.25 | [
{
"text": "hi kamlesh, you can get the physical material at this link http://askiitians.com/iit-jee-chemistry/physical-chemistry/# for recomended books: http://askiitians.com/important-books-iit-jee.aspx askiitian.expert- chandra sekhar",
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8d8176fd365d968bff207e11e373d72d | i have got 65% in my boards but i could not secure pass marks in chemistry so will be eligible for iit 2010 | askiitians.com | 2021.31 | [
{
"text": "hi aritra, if you have completed the chemistry course in compartment this year then you are eligible for writing the jee 2010....by the time of counselling you should get the cerficate/memorandom of marks as a proof that you have passed.... all the best",
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1de263c48bcd66f01e85806911654ddd | what is euchromatin ? explain in brief.and its functions also | askiitians.com | 2021.31 | [
{
"text": "hey friend functions of euchromatin euchromatin is the part of the chromatin involved in the active transcription of dna into mrna. as euchromatin is more open in order to allow the recruitment of rna polymerase complexes and gene regulatory proteins, so transcription can be initiated",
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6006e9e326b701f36118544bc3b3e394 | how to get 100+ marks in mathsand physics in jee main | askiitians.com | 2021.25 | [
{
"text": "@ saiteja getting 100 + requires your effort and obviously completely depend upon your hardwork . planned up yourself with proper strategy and time table and prepare accordingly . and when u are preparing ,m donot forget to judge your performance and take mock test regularly with proper feedback and monitoring system . join askiitian self study package . and with that u can clear all your doubts alongwityh guidance from top notch faculty from iit. and also it have lot of other stuff . and donot neglect your ncert textbook , they are vital . and if u are in any coaching institute , then read their notes , otherwise if not , take appropriate ref books . all the best ..",
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"text": "visit http://www.askiitians.com/iit-jee/main/preparation-tips/ http://www.askiitians.com/iit-jee/advanced/preparation-tips.html thanks",
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"text": "see your concept should be as clear as you can make it ,never jump the basics and try to improve thinking ability and problem solving skills,that can be achieved by clearing your doubts where you have.",
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3dbf6fc68a246eefa5b3605489429caf | out of 2^1/2 and 3^1/3 which is greater | askiitians.com | 2021.25 | [
{
"text": "take log on both sides, you will get ½ * log2 and 1/3 * log3. if you put values of log2 and log3, you will get 1/3 * log3 > ½ * log 2.",
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0a7d599825f52e20b8e51325ea3038c2 | the phenotypic ratio of trihybrid cross in f 2 -generation is? 27:9:9:9:3:3:3:1 9:3:3:1 1:4:6:4:1 27:9:3:3:9:1:2:1 | askiitians.com | 2021.31 | [
{
"text": "dear student , a trihybrid cross yields a phenotypic ratio of 27:9:9:9:3:3:3:1. this reflects the phenotypes generated by the 64 genotypic combinations resulting from 8 different male gametes fertilizing 8 different female gametes.",
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"text": "a cross between two individuals that are heterozygous for three different traits is called a trihybrid cross. consider a cross of f 2 generation between organisms with genotype aabbcc. as shown in the figure the phenotypic ratio of a trihybrid cross in f 2 generation will be 27: 9:9:9:3:3:3:1. thus the correct answer is option a.",
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"text": "a cross between two individuals that are heterozygous for three different traits is called a trihybrid cross. consider a cross of f 2 generation between organisms with genotype aabbcc. as shown in the figure the phenotypic ratio of a trihybrid cross in f 2 generation will be 27: 9:9:9:3:3:3:1. thus the correct answer is option a...",
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"text": "a cross between two individuals that are heterozygous for three different traits is called a trihybrid cross. consider a cross of f 2 generation between organisms with genotype aabbcc. as shown in the figure the phenotypic ratio of a trihybrid cross in f 2 generation will be 27: 9:9:9:3:3:3:1. thus the correct answer is option a",
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|
4ebd87ea8cf10b69804b33a74dbd9666 | this rule gives the direction of\_\_\_\_\_\_\_\_\_\_\_ | askiitians.com | 2021.31 | [
{
"text": "also known as the motor rule this is a way of determining the direction of a force on a current carrying conductor in a magnetic field. the thumb, the first and the second fingers on the left hand are held so that they are at right angles to each other. if the first finger points in the direction of the magnetic field and the second finger the direction of the current in the wire, then the thumb will point in the direction of the force on the conductor.",
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aa5f78cc691e0c8ef3428ec90249e39d | what is done in preparatory course.......i mean do i have to study the 11th and 12th curriculum again for a year or if my performance is good in the course i shall be promoted to btech ist year?? i am very much confused and i shall be indebted if you please answer my queries | askiitians.com | 2021.31 | [
{
"text": "hi bhavna, in a prep course at iit , u will be taught basic sciences in math,physics n chemistry.....in dese courses dey teach u in such a way dat u can be brought to d level of d students of jee qualification,,,,,, after one year u hav to give a qualifying exam den if u clear dat exam den u can take admission at any iit according to d no of seats remained vacant during counselling.....i m srry to say dat der is no such thing like upgradation when ur performance is gud so u hav to wait untill u got clear in d selection exam,",
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0b2bd57816c2f1eaaa2942e18d5efe44 | cxc v | askiitians.com | 2021.43 | [
{
"text": "hi neeta, what exactally you want to know about this? regards",
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|
280e1949faac9ed25ca57b628e7bc03d | {2x-[2x]}^2 from 0 to 100[x],where [.] is greatest integer function | askiitians.com | 2021.25 | [
{
"text": "https://www.askiitians.com/forums/integral-calculus/26/63915/definite.htm",
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69101d69074f91263b6e9fa776c11725 | how is the army institute of technology pune? how is the faculty there and what about their campus and placement? | askiitians.com | 2021.25 | [
{
"text": "hi , this one is quite good in terms salary package and education and infrastructure.. 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. regards, amit yadav 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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8f5e5caee5963c93ba4e79a42fe9cec7 | why the electric field inside a conductor placed inside an external electric field is zero | askiitians.com | 2021.25 | [
{
"text": "it only happens in electrostats as in electrostatics free charges in a good conductor reside only on the surface. and after coming on surface they will align themselves in such a fashion such that field is zero inside.",
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d715ee6f6a1d61b8e34929ce30685a8d | generally we know that in d block elements specially in 3d orbitals as we move from left to right the oxiation state increase till manganes and then decrease why? and also why chromium do not posses +1 oxidation state? | askiitians.com | 2021.31 | [
{
"text": "please go through the attached link. https://www.askiitians.com/iit-jee-d-and-f-block-elements/",
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|
71ee0bfef083f814d30e5f1b18af5d0c | a die is rolled 3 times . the probability that the sum of the faces is 9 is: options: 5/81 5/108 25/216 5/54 | askiitians.com | 2021.43 | [
{
"text": "there are total 25 cases in which the net sum is 9. and total possible cases are 6³= 216 hence, the probability that the sum of the faces is 9 is:25/216. and if you want to know how to make cases ,do approve thi reply so that i may help you further",
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baaaf964a2a71cd7863a683d6b4d9dc5 | f(x)=x/sinx in (0 0 ,90 0 ) is increasing or decreasing ? | askiitians.com | 2021.21 | [
{
"text": "dear noogler, the graph of your given function between (0, pi/2) is incresing. in a wide range we can not be decided monotonicity of the function.",
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] |
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3dde36df8fbe27541fee933b0e45141e | does the transfer of energy take place when you push, a huge rock with all your might and fail to move it? where is the energy you spend, going? | askiitians.com | 2021.43 | [
{
"text": "dear student when rock is pushed with all might . the energy does not allow the roctc to move. no work is said to be done. the energy gets transformed in the form of heat energy. thanks",
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01641c8f2d42dcb84fffb8289ab93bcf | i joind resonance last year bt still findng difficult k which subject n topic shud i give much preference to..???.. n how many hrs shud i study dese days wen i hav only a year left..??? | askiitians.com | 2021.31 | [
{
"text": "dear nikitha, i suggest to prepare all topics as you have 1 year left. follow standasr text books and your coaching center material... i hope after completing your +1 exams, you have whole summer and +2 year for preparing for iit... read all topics and get u r doubts clarified in each topic nad make all concets clear. as you go on with u r preparation, test u r self with concepts by giving some tests or practise objective test papers this shld give confidence and boost u further.. all th ebest with u preparation -- regards ramesh",
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c85fe7b675ba5e24e6686ab269aaf0c1 | how do good animal husbandry practices benefit farmers? | askiitians.com | 2021.43 | [
{
"text": "dear student good animal husbandry practices are beneficial to the farmers in the following ways: (iii) proper management of domestic animals in terms of shelter, feeding, care and protection against diseases. (ii) improvement of breeds of the domesticated animals. (iii) increasing the yield of foodstuffs such as milk, eggs and meat. thanks",
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e0aa91da535f74efc4befb562b893ee8 | trunip mosaic and black rot of crucifers is due to viruses and bacteria respectively bacteria and viruses respectively bacteria and nematodes respectively] virus and nematodes respectively | askiitians.com | 2021.25 | [
{
"text": "the correct option is 1. turnip mosaic virus (tumv) is a potyvirus of the family potyviridae that causes diseases in cruciferous plants, among others. the virus is usually spread by 40-50 species of aphids in a non-persistent manner. infected plants, especially the natural hosts, show symptoms such as chlorotic local lesions, mosaic, mottling, puckering or rugosity. tumv is a positive-sense single stranded rna virus, consisting of a non-enveloped, helical capsid that is filamentous and flexuous, with an average length of 720 nm. the tumv genome is linear and monopartite (single particle). the virus has a thermal inactivation point (tip) of 62°c, and longevity in vitro (liv) of 3–4 days.",
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cac7ae968fddb9e7f140eee44d8d854e | anabolism is: endergonic process exergonic process bidirectional process destructive process do explain all the terms in the options and justify your answer. | askiitians.com | 2021.25 | [
{
"text": "in endergonic reactions, the product have more energy than the reactants, so the reaction requires an input of energy. hence option a is correct.",
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01a63ed693440ef8c5e6d1eee45b927d | sir, what will be the min marks required for an sc student this year to secure a rank of 1000 in sc category in jee advanced ? | askiitians.com | 2021.25 | [
{
"text": "it it shoud be about 90 marks based on previous year and toughness level but wait for final results",
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eeb0e598831ac3b384bfaa78aa677bc8 | hi sir i hav secured 1600 rank in iitjee2010 as per my rank i can get chemical engg in iit madras and comp engg in iit guwahati.which one should i prefer.i need ur help plzz. | askiitians.com | 2021.21 | [
{
"text": "dear rahaman, you should prefer computer science in iit guwahati....afterall branch does matter a lot and in the end you will lots of good job offers.. 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. 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 sagar singh",
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ec689fb219714a1478abc1f3230a7e9a | which of the following is a functional aspect of an ecosystem? 1. species composition 2. inorganic nutrients 3. homeostasis 4. topography | askiitians.com | 2021.25 | [
{
"text": "homeostatis.. species is character of community.. and topography is for earth .. but homeostatis is character of ecosystem",
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|
eb21f41fde1b538d66dc7fa0706a236d | how to learn organic chemistry mechanisms.... i'm havin tough time understanding the concepts.. like why a particular bond breaks and why the arrows and y electrons go where they doo... all this drivin me nutzz | askiitians.com | 2021.39 | [
{
"text": "dear student, you shud immediately buy either jagdamba or arihant organic in order to have quick understanding of organic chemistry. 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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48f34afb7f2ff51ee92fd41432545f4c | is the question of iit 2009 and 2010 totally based on the syllabus given by them? | askiitians.com | 2021.25 | [
{
"text": "dear student yes questions are based on the syllabus only. but sometimes there may be one or two questions that are not mentioned explicitly but its rare. 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..",
"name": "",
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"text": "is it like they didnot give acetal formation in the syllabus, so its application wont be in the question paper? is it like they gave cannizaro in the syllabus, so its application may be there in the question paper?",
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41468d32ba8e7535a52e63a13171abc1 | which are the most scoring topics of 12 class physics,maths and chemistry? | askiitians.com | 2021.39 | [
{
"text": "dear krishan for iit jeee there is no fixed weitage, it vary from year to year... f you will see the pattern of last year papers,then you will find that question were framed in such a way that it include more than one chaptre. and in whole paper almost entire syllabus are covered .so it is not advisable to leave any topic. but the important topics are. maths: calculus, vectors, complex numbers, co-ordinate geometry(2d+3d) quadratic equations. physics: optics, modern physics, thermodynamics, a/c circuits, fluid mechanics, experiments. chemistry: solid state, chemical bonding, aldehydes, ketones, carboxylic acids, alkenes, alkynes, stereo and geometrical isomerism, transition elements, coordiantion compounds, electro chemistry, kinetics and equilibrium. but i will suggest you to cover alll the topics and give more stress on above given topics. 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",
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9b1be7c7afd3251c2b6d4f316a089fbb | i cant understand why there are so many exams for engg., instead there must be only one national wide exam | askiitians.com | 2021.21 | [
{
"text": "hi shreya, right now this is the biggest news coming from the government and very soon it may happen that there will be a common exam only regards",
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}
] |
|
50846a207325b62713a9a53c654c56ff | is there any quantum mechanics in electrical engineering? | askiitians.com | 2021.25 | [
{
"text": "@ xavier no , its not on electrical engg , but its on mechanical engg. if u can refer to the defination of quantum mechanics then it is its a branch of mechanics that deals with the mathematical description of motion and interaction of subatomic particle . bycombining the concept of wave partice duality, heisenberg uncertainity , etc … so, if u will take mechanical engg after 12 th then u can learn moreabout this all the best ..",
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|
140830e12af12484a873674e70a54cff | what is means of beats? | askiitians.com | 2021.43 | [
{
"text": "two slightly different frequency of waves travelling in a same direction produce the waxing and waning is called beats. waxing:increase amplitude is called waxing waning:decrease in amplitude is called waning.",
"name": "",
"is_accepted": false
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{
"text": "two slightly different frequency of waves travelling in a same direction produce the waxing and waning is called beats. waxing:increase amplitude is called waxing waning:decrease in amplitude is",
"name": "",
"is_accepted": false
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{
"text": "two slightly different frequency of waves travelling in a same direction produce the waxing and waning is called beats. waxing:increase amplitude is called waxing waning:decrease in amplitude is",
"name": "",
"is_accepted": false
},
{
"text": "two slighty diffrence frequency of waves travelling same directions producing waxing and wanning is simply called as beats",
"name": "",
"is_accepted": false
},
{
"text": "two slightly different frequency of waves travelling in a same direction produce the waxing and waning is called beats. waxing:increase amplitude is called waxing waning:decrease in amplitude is called waning.",
"name": "",
"is_accepted": false
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{
"text": "two slightly different frequency of waves travelling in a same direction produce the waxing and waning is called beats. : beats",
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|
dc20cf5202611cf2eb675ddad120cce6 | sir how to show the bijection of the question d1 part(4) and how to find the inverse | askiitians.com | 2021.39 | [
{
"text": "te above ques is really easy. observe that f’(x)= 2x+1 which is greater than zero for all x in domain of f. so this means that in [0,3] f is an increasing function, which proves that it is an injective function. now, f(0)= 1 and f(3)= 9+3+1= 13. also, f is a continuous function, so it attains all the values between 1 and 13. hence, we have proved that it is surjective too. since the function is both injective and surjective, it is a bijection by definition. hence proved now to find the inverse, simply interchange x and y. x=y^2+y+1 or y^2+y+1 – x=0 or y= [-1+-root(1 – 4(1-x))]/2 but since y is positive, we drop the negative sign so, y=f-1(x)= [–1+root(4x – 3))]/2, domain of f-1 being [1,13] and range being [0,3]",
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49700ccd08c08ab26f7e61e42ea7b157 | there are p copies each of n different books. them number of different ways in which a non-empty selection can be made frm them is (a) (p+1) n - 1 (b) p n -1 (c) (p+1) n-1 - 1 (d)none | askiitians.com | 2021.43 | [
{
"text": "ans: hello student, please find answer to your question below we have ‘p’ copies of each of ‘n’ different books. number of ways to select from p copies: p + 1 total no. of ways: (p + 1)(p + 1))p + 1)................n times (p + 1) n number of different ways of selection is (p + 1) n – 1",
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|
51bc0f6f004463b38c6a94e7ed45835d | when two circles touch each other what is slope of common tangent at point of contact | askiitians.com | 2021.31 | [
{
"text": "use formula tan q=m1-m2/(1+m1m2) find dy/dx for both circles at point of intersection that will give you m1 and m2 and use formula",
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] |
|
538d474b89003158d0758bbac87583c6 | give a good book to refer for electrodynamicshxhdjgk | askiitians.com | 2021.25 | [
{
"text": "you can follow arhihant dc pandey for concept and cengage or hcv for qoestion solving thanks",
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{
"text": "please upvote if answer was use ful",
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{
"text": "you can follow arhihant dc pandey for concept and cengage or hcv for qoestion solving thanks",
"name": "",
"is_accepted": false
},
{
"text": "you can follow arhihant dc pandey for concept and cengage or hcv for qoestion solving thanks j",
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|
b1ce0a4702c4a3600decbac8a3675325 | playing with an old lens one morning, ravi discovers that if he holds the lens 10cm away from a wall opposite to a window, he can see a sharp but upside -down picture of outside world on the wall. that evening, he covers a lighted lamp with a piece of opaque paper on which he has pierced, a small hole 1 mm in diameter. by placing the lens between the illuminated card and the wall, he manages to produce a sharp image of diameter 5 mm on the wall. answer the following questions based on the above information : (i)what is the power of the lens? (ii)in the evening experiment, how far away from the opaque paper did he place the lens? (iii)how far apart were the card and the wall? | askiitians.com | 2021.25 | [
{
"text": "according to question ravi get a sharp image of object placed far away outside the window so image will be formed at focus and object is at infinity to get a sharp image. 1) now, v=f=10 cm so p=100/10 p=10d 2) evening experiment; a/q m=hi/ho= -5= v/u . so, v=-5u---(1) 1/f=1/v-1/u => 1/10=1/v-1/u-------(2) from (1 )and (2) we get : 1/10= -1/5u-1/u => 1/10= -6/5u=> 5u= -60=> u= -12 cm so, (-12) cm far is the lens from the opaque paper.(front of the lens) 3) v=? u= -12 cm and f=10 cm 1/f=1/v-1/u => 1/10= 1/v+1/12 => 1/10-1/12=1/v =>6-5/60=1/v => 1/60=1/v => v=60cm so , card and the wall are 60 cm apart from each other. (behind the lens)",
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a2b461f69af60bbc1c58760c0c51bd45 | what are important books for iit-jee and bitsat?? | askiitians.com | 2021.21 | [
{
"text": "here is a complete list of books best suited for iitjee preparations.. they should also cover bitsat as well. http://www.askiitians.com/important-books-iit-jee.aspx",
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ed937b84b5a7793e2e64835e6ddc1f27 | air is a bad conductor of heat because: a it's molecules are in continuous contact with each other. b it's molecules are not in continuous contact with each other c it's molecules absorb all the heat d it's molecules are moving randomly due to brownian motion | askiitians.com | 2021.31 | [
{
"text": "air is a bad conductor of heat because it's molecules are not in continuous contact with each other. air molecules are too far to disperse heat energy to one another efficiently. heat is conducted by molecules and atoms that are very closely bonded together and vibrating at high frequency.",
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2dcd013d024c74d1ea57b49617a6c4c7 | 3 monkeys take time to eat 3 bananas in 3 hrs then how much time to eat 3 bananas by 2 monkeys?? | askiitians.com | 2021.31 | [
{
"text": "3 monkeys take time to eat 3 bananas in 3 hrs 2 monkeys 3 bananas time??? it is simple to calculate now the time to eat bananas is 4.30 hrs",
"name": "",
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{
"text": "hi, 3 monkeys take 3 hours to eat 3 bananas that means assuming that the monkeys divide the bananas equally among themselves, each monkey takes 3 hours to eat one banana ========== now, 2 monkeys are given 3 bananas assuming once again that the monkeys divide the number of bananas equally among themselves: eack monkey gets 1 and half bananas so he will take 4 and half hours to eat his share. regards, rajat askiitian expert",
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|
dfb29764e9c5caa4a80ec63f047fef2f | write notes on : secondary sexual characters write notes on : secondary sexual characters | askiitians.com | 2021.31 | [
{
"text": "dear student secondary sexual characters: the characters which help to distinguish the male from female are called secondary sexual characters. the characters like hair on chest under arms, development of breast, beard and moustaches are called secondary sexual characters. thanks",
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|
912d0f1196de2f781e01f020aa2ef7cd | i got cse in nit warangal and also ece in bits hyderabad campus. which is better ? | askiitians.com | 2021.21 | [
{
"text": "prefer cse at nit.",
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] |
|
8d003dac3656af6c7c7290f7bd64bbd4 | sir i asked u whether i cud get a seat in msc in kgp....................sir very very thanks for your kind reply but sir i m presently studying in bit mesra and am eager to get into iit kgp because i m pretty sure of getting slided into a good branch after the first year as i m well in touch with the syllabus taught in 1st year..........sir so i wanted to know what are the % of my being getting into iit kgp with msc............i would like to remind you that my rank is 5619........ | askiitians.com | 2021.31 | [
{
"text": "dear akshay, i dont know why you want to get into iit kgp as you are already studying inthe other best college i. e. meshra. the ranking gap of these two college is just by 3 - 4 colleges. and i am pretty sure that you wont be getting a very good branch there either m.sc. in economics or applied goology. i should make you aware of the fact that its ot very easy to get your branch changed after the first year, just scoring good doesnot help. branch to which you will be opting should have some students going for a department change. at your position i will prefer to stay at the same college and study well there. thank you.",
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|
6f492da08272cd53a3758599832d2928 | how much should i score in jee main to get admission in computer science stream in nits?and how much should i score in order qualify for jee-advanced provided that i finish in top 20 percentile in my board? | askiitians.com | 2021.21 | [
{
"text": "dear gopikrishnan, sinc this is the first time that common enterance is going to be adopted so we cant comment on the min rank or marks for admission in any of the colleges.. just work hard and try to score as much a possible. 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. http://www.askiitians.com/packages/packages.aspx so start the brain storming…. become a leader with elite expert league askiitians thanks aman bansal askiitian expert",
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] |
|
36465f4d677230838e4a5aaf9b832733 | which chapter will come in kvpy sa exam | askiitians.com | 2021.21 | [
{
"text": "whole syllabus of class 11 th and 12 th ...pcm...",
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] |
|
6c2b87342a2e45fe284ccf896cdc19e9 | what is a parallel-plate capacitor? | askiitians.com | 2021.25 | [
{
"text": "in given figure shows a capacitor in which the two flat plates are very large and very close together, that is, the separation d is much smaller than the length or width of the plates. we can neglect the fringing of the electric field that occurs near the edges of the plates and assume that the electric field has the same magnitude and direction everywhere in the volume between the plates. we obtained the electric field for the single large uniformly charged disk at points near its center. if the capacitor plates are very large, their shape is not important, and we can assume that that electric field due to the each plate has it s magnitude. the net electric field is the sum of the fields due to the two plates; - e = e + + e - . as the figure shows the fields due to the positive and negative plates have the same direction, so we can write e=e + +e - = δ/2ε 0 + δ/2ε 0 = δ/ε 0 using δ = q/a. where a is surface area of each plate. where we have chosen an integration path along one of the lines of the electric field, so that e and ds parallel (see figure)",
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] |
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892efb49ecd43786843b06a24b7307eb | what is diffraction and what are its causes? | askiitians.com | 2021.39 | [
{
"text": "dear viraj, diffraction of light occurs because of its transverse wave nature. we have already said that when light hits an object, it is diffracted. this phenomenon is best understood by an examination of huygens principle. in 1678, the dutch pysicist christiaan huygens wrote a treatise on the wave theory of light in which he presented a theory now known as huygensprinciple. it states that every point on a wave front can be thought of as a new point source for waves generated in the direction the wave is traveling or being propagated. or-- the wavefront of a propagating wave of light at any instant conforms to the envelope of spherical wavelets emanating from every point on the wavefront at the prior instant (with the understanding that the wavelets have the same speed as the overall wave). fresnel later elaborated on huygens principle by stating that the amplitude of the wave at any given point equals the superposition of the amplitudes of all the secondary wavelets at that point (with the understanding that the wavelets have the same frequency as the original wave). these are termed huygens wavelets. the formation of the airy disk can best be described by looking at how imaging of a luminous point occurs in a lens system such as is found in the compound microscope best of luck 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",
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|
5976b447c7dea3de661df9ec3ed77354 | ∫ (1+cos4x ) / (cot x – tan x ) dx , plz answer asap, thank you | askiitians.com | 2021.31 | [
{
"text": "on solving the equation we get , {cos4x+1}/{cotx - tanx} = (2cos 2 2x)(sinx.cosx)/(cos 2 x - sin 2 x) = cos2x.sin2x = sin4x/2 on integrating we get , -cos4x/8 + c",
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|
553b8ffe0a7783af7db7d9dc4e2ee6db | explain why aniline is not as basic as ammonia. | askiitians.com | 2021.21 | [
{
"text": "amines are bases because the lone pair of electrons on the nitrogen atom can accept a hydrogen ion - in other words, for exactly the same reason that ammonia is a base. with phenylamine (aniline), the only difference is that it is a much weaker base than ammonia. amines are bases because they pick up hydrogen ions on the lone pair on the nitrogen atom. in phenylamine, the attractiveness of the lone pair is lessened because of the way it interacts with the ring electrons. the lone pair on the nitrogen touches the delocalised ring electrons. . . and becomes delocalised with them. that means that the lone pair is no longer fully available to combine with hydrogen ions . delocalisation makes molecules more stable and electrons",
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e5d00098c01565591724afe42d07c13b | hydrogen peroxide decomposes according to the following thermochemical reaction: h 2 o 2 (l) → h 2 o(l) + 1/2 o 2 (g); δh = -98.2 kj calculate the change in enthalpy, δh, when 1.00 g of hydrogen peroxide decomposes. | askiitians.com | 2021.21 | [
{
"text": "dear sachin, the thermochemical equation tells us that δh for the decomposition of 1 mole of h 2 o 2 is -98.2 kj, so this relationship can be used as a conversion factor. using the periodic table, the molecular mass of h 2 o 2 is 34.0, which means that 1 mol h 2 o 2 = 34.0 g h 2 o 2 . using these values: δh = 1.00 g h 2 o 2 x 1 mol h 2 o 2 / 34.0 g h 2 o 2 x -98.2 kj / 1 mol h 2 o 2 δh = -2.89 kj 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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|
aa015e66e1a72f678b51732572c99ffa | explain the effect of intramolecular bonding on strength of acids. | askiitians.com | 2021.21 | [
{
"text": "dear menka, hree types of force can operate between covalent molecules: dispersion forces also known as london forces (named after fritz london who first described these forces theoretically 1930) or as weak intermolecular forces or as van der waal's forces (namd after the person who contributed to our understanding of non-ideal gas behaviour). dipole-dipole interactions hydrogen bonds relative strength of intermolecular forces: intermolecular forces (dispersion forces, dipole-dipole interactions and hydrogen bonds) are much weaker than intramolecular forces (covalent bonds, ionic bonds or metallic bonds) dispersion forces are the weakest intermolecular force (one hundredth-one thousandth the strength of a covalent bond), hydrogen bonds are the strongest intermolecular force (about one-tenth the strength of a covalent bond). dispersion forces < dipole-dipole interactions < hydrogen bonds dispersion forces (london forces, weak intermolecular forces, van der waal's forces) are very weak forces of attraction between molecules resulting from: momentary dipoles occurring due to uneven electron distributions in neighbouring molecules as they approach one another the weak residual attraction of the nuclei in one molecule for the electrons in a neighbouring molecule. the more electrons that are present in the molecule, the stronger the dispersion forces will be. dispersion forces are the only type of intermolecular force operating between non-polarmolecules, for example, dispersion forces operate between hydrogen (h 2 ) molecules, chlorine (cl 2 ) molecules, carbon dioxide (co 2 ) molecules, dinitrogen tetroxide (n 2 o 4 ) molecules and methane (ch 4 ) molecules. best of luck...!!!! 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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|
4e6a7183b1d90e5ffb9be5f2879e2c73 | hello sir , its really critical qus , pls read it carefully , so my problem is i am a dropper , i am preparing for iit jee for last 8 months , now 2 months left , i have prepared maths from ml khanna , it takes lots more time to complete it , but now i go for second stage prepration . i first took a das gupta mcq , but found it miss solution alot or sometimes give one line solution . so i cancel to do it . then i pick fiit jee rsm notes , i found its subjective qus are out dated as compare to iit jee and remaining objective qus are less to build my concepts ( because i have done progrressions and series from it , was not that good ) and solution given by fiit jee is wrong some times . so i drop to do this material too . after this i start doing tmh , it looks like qus put in this book are of olympaid level , i mean to last year jee jee paper was too simple . now only two months left pls suggest what to do ?? i am thinking to buy arihant , but do you think is it possible to complete arihant huge book in two months ?? or tell some other which can be completed and having quality qus upto jee level | askiitians.com | 2021.39 | [
{
"text": "hi mohit, if you have finished it once then please join askiitians online classes for 1 month and use material provided by askiitians you will be amazed to see the test series and classes accordingly hope this will help you a lot regards",
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|
57ed8e433e51f1347ba7d91f42f90f36 | what is mean by linear and bilateral? | askiitians.com | 2021.31 | [
{
"text": "linear network the network whoes parameter does not change due change in current or vtg. eg. resistance,inductance,capacitance. bilateral network the ckt whoes chara. does not change due change of direction of vtg. & current. e.g. transsmisson line",
"name": "",
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},
{
"text": "linear network the network whoes parameter does not change due change in current or vtg. eg. resistance,inductance,capacitance. bilateral network the ckt whoes chara. does not change due change of direction of vtg. & current. e.g. transsmisson line",
"name": "",
"is_accepted": false
}
] |
|
baa1d8cf26b03c28024fd2b94ea76fda | let f(x) = (x + 1)2 –1, x > –1 statement – 1 : the set {x : f(x) = f–1(x)} = {0, –1}. statement – 2 : f is a bijection. | askiitians.com | 2021.25 | [
{
"text": "dear jayant question is incomplete. please check and repost the question. you can also attach an image. i will be happy to help you.",
"name": "",
"is_accepted": false
},
{
"text": "f(x is not cont.................... bijection - one - one function f(x) = x (x+1)^2 -1 = x f(x) -x = 0 x^2 -2x + 2-1 -x = 0 x(x+1) =0 roots are 0,1 statement 1 is true …...........",
"name": "",
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},
{
"text": "dear student roots are (0, -1 )...............................................................................................................",
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}
] |
|
88ecba1c7018957fee27138ba62f4fd2 | if the weight of 5.6 lit of of a gas is 11g at stp.the gas is 1. so2 2. no 3. n2o | askiitians.com | 2021.39 | [
{
"text": "dear amit wt of 22.4 lit gas=(22.4/5.6)*11=44g wt of n 2 o = 14*2+16=44g 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..",
"name": "",
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{
"text": "22.4l of gas = 1mol 1l= 1/22.4 mol 5.6l = 1/4 mol let molar mass of gas is m then 5.6l = m/4gm =11gm (given) so m=11*4=44gm so the gas is n 2 o",
"name": "",
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] |
|
e78ac1182c9c3538b0e2481839ec713a | i am in class 10 and want to opt commerce with maths but i am unaware of the career or the oppurtunities after taken commere can i get some help plzzzzz...... | askiitians.com | 2021.39 | [
{
"text": "yes you can have great carrer oppurtunity if you opt for commerce.you can do mba as one of your carrer option and if willing you can do charted accountant.you can also opt for bca with mca.these are the best carrer option left to you",
"name": "",
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] |
|
6a2ca0331bb8820029eb8f12fc7e12a7 | iiit kota or iiit vadodara for cse? | askiitians.com | 2021.21 | [
{
"text": "i would say go for iiit guwahati because the faculty there is better and there you even get the support of iitg and gautam barua, previous iitg director as your director and professor, and it’s a safer bet.",
"name": "",
"is_accepted": false
},
{
"text": "i think you should opt for iiit guwahati as it has a better prospect....the hostels are good and the faculty to student ratio is also very good...plus their lab have state of the art equipment.",
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"is_accepted": false
}
] |
|
53a3085646ba4989369107882cf33d89 | 64. you must have heard the word ‘water harvesting.’ what does it mean? | askiitians.com | 2021.43 | [
{
"text": "answer: explanation: it means capturing rain water or run off in a local area.",
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}
] |
|
de9374cc918d08ab61b26369220fd771 | how can i get admission to nit college | askiitians.com | 2021.21 | [
{
"text": "to get admission in nit''s you must pass out the jee main exam hich is going to be held on 7th april. if you are able to secure good rank in this exam than you will be allowed to apply for councelling and through this you can enter nits best of luck for jee mains!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!",
"name": "",
"is_accepted": false
},
{
"text": "you can write entrance exam",
"name": "",
"is_accepted": false
},
{
"text": "for admission to nit''s you need to appear in the jee main exam. 40% of your class 12 th board performance and the remaining 60% of your performance in jee main will determine your air.based upon which you might get admission to the nit''s.",
"name": "",
"is_accepted": false
}
] |
|
48b9397a8057d1c70931a893931a5106 | the min value of 2 sinx +2 cosx is? | askiitians.com | 2021.39 | [
{
"text": "dear vardaan 2 sinx +2 cosx use am ≥gm ( 2 sinx +2 cosx )/2 ≥ ( 2 sinx 2 cosx ) 1/2 ( 2 sinx +2 cosx ) ≥ 2( 2 sinx+cosx ) 1/2 ( 2 sinx +2 cosx ) ≥ 2 *2 (sinx+cosx)/2 ( 2 sinx +2 cosx ) ≥ 2 *2 sin(x+45)/√2 ( 2 sinx +2 cosx ) ≥ 2 *2 -1/√2 2 sinx +2 cosx ≥ 2 1 -1/√2 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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|
ffcd22c6230df271691c296ceb6c5545 | sir, cud u throw sum light on mech. engg. placements n pay packages in iit or bits. | askiitians.com | 2021.39 | [
{
"text": "dear raj, the scenario is not5 constant in term of placement and also not fixed in each iit/bits the average salary was the 5.2 lacs last year in case of mech at iitr. the package was higher in iit b and iit kgp. this things depends on the job reqiurements and also companyies. the minimum salary in mech was 20 k in hand last year at iitr. and was more worst for other branches. and maximum package was 12lacs in india. but this year, the scenario will be better than 2009 and package will be higher except than iitr. the company may visit iitr in last moment because of some hind fastival at uttrakhand. so conclude is this , that salary will be between 4 to 12 lacs ctc and in hand salary will vary between 21000 to 60,000 in starting. pramod kumar iitr alumni",
"name": "",
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}
] |
|
81def25e32b10f213ae1f21294623b8c | is sets relations functions in the iit -jee syllabus | askiitians.com | 2021.21 | [
{
"text": "i think..venn diagram is of extreme importance......... and u should hav the knowledge abt sets....becoz its the basic ........ i mean everything is related to sets......",
"name": "",
"is_accepted": false
},
{
"text": "dear kiran yes it is there in syllabus for iit-jee. if this answer was helpful then please click yes below to approve my answer. please kiran thank you. best of luck.",
"name": "",
"is_accepted": false
},
{
"text": "no, sets are not in the syllabus of iit -jee...although they are in the syllabus of aieee",
"name": "",
"is_accepted": false
}
] |
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