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3de38140f91362db43818cf34ca345bf | three vectors are given below a = i^ + 2j^ + 3k^ , b= 2i^ + 4j^ + 6k^ and c= 3i^ + 6j^ + 9k^ find the components of the vector a + b - c. | askiitians.com | 2021.31 | [
{
"text": "dear student, hence hence all the components are zero.",
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}
] |
|
507d2567dea6291587fdade530fa7aeb | cn 1 has which type of fibres a) sensoary motor sympathetic d parasympathetic e special senory | askiitians.com | 2021.39 | [
{
"text": "dear student.... the olfactory nerve is typically considered the first cranial nerve, or simply cn 1 and it contains sensory nerve fibers relating to smell.... with regards, mahima (askiitians forum expert)",
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},
{
"text": "i also got the same answer but the correct answer they gave was special sensory i dont know how it is correct ….....",
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}
] |
|
b384fb289d8246b2da6da2de926f9cda | when the speed of an electron increases, its specific charge | askiitians.com | 2021.31 | [
{
"text": "when the spped of an electron increases, its charge /mass ratio or specific charge decreases.................................................",
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},
{
"text": "@ mandeep we know that specific charges are e/m e/m is inversely proportional to the velocity of the electron ,, therefore as speed of the electron increases , the specific charges decreases . hope it helps all the best ..",
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},
{
"text": "when speed of a electron is increases it’s specific charge decreases. as e/m is invorsily proportional to electrons velacity.",
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"is_accepted": false
},
{
"text": "as per the theory of relativity, as the velocity of electron increases its mass also increases. as specific charge is inversely proportional to mass, as mass increases specific charge decreases. hence as velocity of electron increases it specific charge decreases",
"name": "",
"is_accepted": false
}
] |
|
e7f73a9681ffb2bb123d2a82bdbb3baa | defination : isotropic , anisotropic , orthopropic , cross ply and angle ply laminate assumptions used in classical laminate theory | askiitians.com | 2021.39 | [
{
"text": "dear dinesh, isotropy is uniformity in all orientations; it is derived from the greek iso (equal) and tropos (direction). precise definitions depend on the subject area. exceptions, or inequalities, are frequently indicated by the prefix an , hence anisotropy . anisotropy is also used to describe situations where properties vary systematically, dependent on direction. isotropic radiation has the same intensity regardless of the direction of measurement , and an isotropic field exerts the same action regardless of how the test particle is oriented. 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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|
9e7655caa1ad56ee34eb25c6fd0ea461 | the largest variety of digestive enzyme is found in? a. carnivorous b. herbivores c. omnivorous d. parasite | askiitians.com | 2021.25 | [
{
"text": "dear student the largest variety of digestive in james is found in omnivorous hence it option c is correct . hope it helps",
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}
] |
|
8f8bd4927970796e47e507daef9458f0 | which is the best book for studying organic chemistry? | askiitians.com | 2021.25 | [
{
"text": "dear divik, first of all make your concepts strong. the elementary study starts from your text books(means the ncert books,etc). then you can move to books by jearmy march, morrison & boyd, solomons & fryhle, francis carey. i must say the god book on stereochemistry only is obviously by e. l. eliel.. these are sufficient.. but develope your own tactics for solving your own problems.. that thing is unique and it counts for a good rank in iit-jee!! warm regards.. do rate the answer if it helped you.",
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},
{
"text": "morrison and boyad is the best book for organic chemestry",
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"is_accepted": false
},
{
"text": "organic chemistry: morrison & boyd, paula yurkanis bruice",
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}
] |
|
6ee859e3f90624ca3d066c48957bc37b | a solution containing 2.675 g of 33 6nhcocl · (molar mass = 267.5 g 1 mol- ) is passed through a cation exchanger . the chloride ions obtained in solution were treated with excess of 3agno to give 4.78 g of agcl (molar mass =143.5 g 1 mol- ). the formula of the complex is | askiitians.com | 2021.43 | [
{
"text": "energy of an electron in the ground state = -2.18 x 10 -18 . energy required for removal of the electron = 0 -(-2.18 x 10 -18 ) =2.18 x 10 -18 j. this is the energy required to remove the electron from one atom of hydrogen in ground state. the energy required to remove electron from one mole (6.022 x 10 23 atoms) will be = 2.18 x 10 -18 x 6.022 x 1023 = 13.12 x 10 5 j/mol",
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] |
|
1ed1ac61341ad830cfab09f145c67ca6 | tana +2tan2a+4tan4a+8cot8a cot a tan a cos a sin a please answer with the solution | askiitians.com | 2021.39 | [
{
"text": "if tan a + 2*tan 2a + 4*tan 4a + 8*cot 8a = cot a , hi, we can solve it as follow = tan a + 2*tan 2a + 4*tan 4a + 8*cot 8a - cot a = 0 now tan a + cot a = 2*cosec 2a & cot a - tan a = 2*cot 2a so,we proceed using these equations. tan a + 2*tan 2a + 4*tan 4a + 8*cot 8a - cot a = tan a - cot a + 2*tan 2a + 4*tan 4a + 8*cot 8a = – 2*cot 2a + 2*tan 2a + 4*tan 4a + 8*cot 8a = – 2*2*cot 4a + 4*tan 4a + 8*cot 8a = – 4*2*cot 8a + 8*cot 8a = 0 .hence proved",
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] |
|
8afbb6ec4e9e7eb1db16c7945b9e4948 | how to solve coordinate questions easily sooooo confused | askiitians.com | 2021.31 | [
{
"text": "dear student please attach a specific question",
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},
{
"text": "k i will add a question of a specific topic with this question sir …............................................................................................. ….................................................................................................",
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}
] |
|
06c797de6fe0b2e3b386f79726ade2ac | define physical change, give example. | askiitians.com | 2021.31 | [
{
"text": "a change in which a substance undergoes a change in its physical properties such as shape, size, colour and state is called a physical change. a physical change is generally reversible, (some exceptions). in this change no new substance is formed. example : an ice cube melting into water",
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] |
|
07e6a67cf17b8147b129cd35d8ca1536 | <p>sir,</p> <p> please tell me which would be better in terms of quality, placement, campus, future scope, and in overall keeping them in order of priorty.(only 4 yr b.tech.)</p> <p>cs iit guwahati, aerospace iit madras, engineering physics iit bombay, engg phy iit delhi , engg. phy. iit madras , cs nit trichy.</p> | askiitians.com | 2021.43 | [
{
"text": "dear anshul, here goes the priority order: 1)cs iit guwahati 2)aerospace iit madras 3)ep in iitd 4)ep in iitb 5)ep in iitm 6)cs nit trichy we are all iitians and here to help you in your iit jee preparation. all the best. if you like this answer please approve it.... win exciting gifts by answering the questions on discussion forum sagar singh b.tech iit delhi",
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|
f4cc18d01e81c456d00ac99feb3afe35 | if a bar magmet is kept antiparallel to the earth's magnetic field then number of neutral point obtained in the horizontol plane containing the bar magnet will be | askiitians.com | 2021.31 | [
{
"text": "two neutral points along the axial line, that is, each neutral point lies on either sides of the magnet on the line joining both poles of the magnet",
"name": "",
"is_accepted": false
},
{
"text": "an infinite number of points , making a ring around the middle of the bar magnet at a certain distance where the bar magnet’s field is exactly equal and opposite to the earth’s field.",
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}
] |
|
4dae226a0830bd8358245455a2e65ec5 | define electric field due tio a point charge? | askiitians.com | 2021.39 | [
{
"text": "dear student please find the link attached https://www.askiitians.com/iit-jee-electrostatics/electric-field/#:~:text=electric%20field%20helps%20in%20analyzing,in%20space%20and%20varies%20accordingly regards",
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] |
|
1307fcb2137c95584369aafc60a24c2b | the 50 kg homogeneous smooth sphere rests on the 30 degree incline a and against the smooth vertical wall b.calculate contact forces at a and b. | askiitians.com | 2021.43 | [
{
"text": "let the contact force acting on point a be a newtons and acting on point b be b newtons.then by resolving forces along horizontal and vertical directions a cos 30=mg a sin 30=b a=50*9.8/.866=565.81 newton b=565.81*.5=282.90 newton",
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},
{
"text": "sorry sir,but diagram is not clear.pls post again",
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|
b31ee5ec7276d66d324c45dca272dd45 | if the radius of the earth were to shrink by one percent, its mass remaining the same, the acceleration due to gravity on the earth’s surface would (a) decrease (b) remain unchanged (c) increase (d) be zero | askiitians.com | 2021.25 | [
{
"text": "(c) g = gm/r 2 and g’ = gm/ (0.99 r) 2 ? g’/g = (r/0.99r) 2 ? g’ > g",
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}
] |
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d317222e78503a248d88f09cf3161fd1 | an element has atomic number 17. to which group, period does it belong ? it is metal or non-metal ? (a) 7th group, 2nd period, non-metal (b) 17th group, 3rd period, non-metal (c) 7th group, 3rd period, metal (d) 17th group, 3rd period, metal | askiitians.com | 2021.31 | [
{
"text": "answer: b",
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] |
|
d3b0be05a2d49c83395b28521a6126ae | how many electrons are possible in an atom with the following quantum numbers:- n=4 and s= -1/2 | askiitians.com | 2021.25 | [
{
"text": "hello. you must be knowing that permissible no. of electrons ina shell is given by 2n 2 . for n=4 it is 32 . according to pauli's exclusion principle half 16 electrons can have s=1/2 & remaining 16 s=-1/2. so final answer would be 16 .",
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161ab5739c1569d1b43ff91e86b6a2e4 | please help me in solving out this problem.please reply me soon | askiitians.com | 2021.43 | [
{
"text": "hello there! here’s your answer: let, for parallel combination, again, so, option (a) is the correct answer! thanks!",
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}
] |
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a4d517e719b0e34af95ed49579c7f5a1 | list of all complex 3d figures such as truncated octahedral | askiitians.com | 2021.21 | [
{
"text": "dear tarash, list of 3d complex figures is: bézier triangle: ( as + bt + cu ) n | 0 ≤ s ≤ 1 ∧ 0 ≤ t ≤ 1 ∧ 0 ≤ u ≤ 1 ∧ s + t + u = 1, a p b q c r vectors if p + q + r = n and p , q , r are nonnegative integers cylinder hyperplane möbius strip platonic solid dodecahedron hexahedron (cube) icosahedron octahedron tetrahedron torus (doughnut) quadric cone cylinder ellipsoid spheroid sphere hyperboloid paraboloid sphere 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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29baf6b6406de07bff62f6110126b36b | sir i scored 200 in jee mains .i am sc can i get cse on dtu i am from haryana | askiitians.com | 2021.43 | [
{
"text": "first off all conguratulation for your marks. you will get dtu sure by this marks.hope it clears. if u have doubts then please clearify. and if u like my answer then please approve answer.",
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410f27ee6d65386798ff7f331ef0df09 | sir if i want give betterment is it necessary to give in all 5 subject for cbse board but i wants apply only in will 2 subject will iit or nit not aceppt my marksheet | askiitians.com | 2021.31 | [
{
"text": "yes they will accept",
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}
] |
|
2cc3a6267ef45b5aec4c66cc8a0480f9 | 5. a jar contains 24 marbles, some are green and others are blue. if a marble is drawn at random from the jar, the probability that it is green is ⅔. find the number of blue balls | askiitians.com | 2021.39 | [
{
"text": "total marbles = 24 let the total green marbles = x so, the total blue marbles = 24-x p(getting green marble) = x/24 from the question, x/24 = ⅔ so, the total green marbles = 16 and, the total blue marbles = 24-x = 8",
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}
] |
|
69c61fcdde170981cfff1a8a8ebc0d8b | i have joined bansal classes kota as a dlp student. currently my rank is first. what are the chances to get rank in jee advance. | askiitians.com | 2021.43 | [
{
"text": "hii the chances are good if you keep up the same pace. best of luck. . . . . . . … . . . . . . .. . . .. .",
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] |
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88051a52fb218c63a52b53fbae7aa64b | pls explain in detail (step by step) | askiitians.com | 2021.43 | [
{
"text": "first find the resultant force.... in vector form total force on mass is : (27.5 i + 13j) n f = (20 2 +15 2 +2.20.15.cos60 ) 1/2 = 5(37) 1/2 n as f = ma accln. = a = 6.083 m/sec 2 we'll get accln, and for direction of accln, the direction of resultant force will be same as of accln. so direction is d = tan-1(13/27.5) direction of accln. = 25.3 degrees with f 1 --------- please feel free to post as many doubts on our disucssion forum as you can. if you find any question difficult to understand - post it here and we will get you the answer and detailed solution very quickly. we are all iitians and here to help you in your iit jee preparation. all the best. regards, naga ramesh iit kgp - 2005 batch",
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|
069ee3bb3a7ae540cf5f8999d8a97c6e | nit surat or nit bhopal??? i heard reputation of bhopal is very bad | askiitians.com | 2021.21 | [
{
"text": "nit bhopal is better than nit surat. there are always rumours associated with everything. don't worry. don't heed to them. 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. do approve if the answer helps you. now you can win exciting gifts by answering the questions on discussion forum. so help discuss any query on askiitians forum and become an elite expert league askiitian. regards, askiitians experts rahul- iit roorkee",
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] |
|
6a714a3e3606d9607b7437fc15fcb4fc | how can we explain 2 nd derivative test in real life? | askiitians.com | 2021.25 | [
{
"text": "a derivative is a rate of change. a second derivative is a rate of change of a rate of change. this is why the first derivative of position is velocity - velocity is the rate of change of position. the second derivative is acceleration, the rate of change of the rate of change (how velocity is changing). there's even a third derivative called jerkwhich measures the rate of change of acceleration.",
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] |
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23ffdaa35bc4a60aa373b3bfe5aa0b7d | i am gettiting 27200 air and 3401 obc rank in aieee .what colleges can i get with branch machanical or ece | askiitians.com | 2021.31 | [
{
"text": "for nits you should prepare well for next year exams.that going to the best for you and your future. as with this rank you wont get anything good and there is no point in doing anything as less qualified",
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}
] |
|
5f0eca87072e26af86b88b9b5026ab7c | if v= x 2 -y 2 , then what will be the graph of electric field on xy axis? | askiitians.com | 2021.31 | [
{
"text": "e=-(∂v/∂x)i-(∂v/∂y)j e=(-2x)i+(2y)j so at a given point (x,y) e is =(-2x)i+(2y)j here ∂v/∂x is partial derivative wrt x please approve",
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}
] |
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de03522da150a1d98dc409ec5d1878fd | bond angle (h-s-h) in h 2 s is close to 109° 107° 105° 90° | askiitians.com | 2021.25 | [
{
"text": "it is around 90° as it belongs to drago compounds where there occurs no hybridization. conditions for drago compounds are simply presence of h like atoms with larger ones like sulphur here.",
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},
{
"text": "i think it should be around 109 degree according to vsepr theory. so option 1 is the correct answer h2s almost has same structure and as h2o",
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}
] |
|
86a428ea117ef5c6a00e5f1c48c4c5f4 | how would you show that light is necessary for oxygen production? | askiitians.com | 2021.25 | [
{
"text": "take a",
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] |
|
67de0d6e216773cb222d9d8d2b0862a4 | my expected marks are 172.i may be placed in eml .which will be better ? rgipt,merchant navy or iiser ? | askiitians.com | 2021.25 | [
{
"text": "i hope the query is resolved.",
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|
40806c986b4668b1282932a54617b098 | a screen is placed 90 cm from an object. the image of the object on the screen is formed by a convex lens at two different locations separated by 20 cm. determine the focal length of the lens. | askiitians.com | 2021.21 | [
{
"text": "distance between object and image, d = 90 cm distance through which lens is displaced, d = 20 cm now, d = u + v = 90 cm; d = u - v = 20 cm or d - v - u = 20 cm so u = 55 cm or 35 cm and v = 35 cm or 55 cm using lens formula, 1/f = 1/v + 1/u 1/f = 1/35 + 1/55 f = 21.4 cm -- regards ramesh",
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2e502a0de2390f1b8585a48cd8c96536 | a block of mass 400gm is hung vertically with the help of a massless spring.initially block is in equillibrium position.spring cinstant of the spring is k = 200n/m.natural length of the spring is 40cm. now the block is streched to some distance such that the total length of the spring becomes 45cm and then released. qn) amplititude of simple harmonic motion of the block is.......... pls explain.... | askiitians.com | 2021.21 | [
{
"text": "amplitude==45-initial length. to find initial length, force=m*g=k*x=>0.4*10=200*x=>x=2cm. initial length=40+2=42cm amplitude=45-42=3cm",
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e2f8a44456b69259d4b203afa295e6b5 | sir , which is better iit patna electrical or nit warangal cse? | askiitians.com | 2021.39 | [
{
"text": "the question is very broad in its respect. you need to narrow your hunt on the basis of academics , placements, scope of research , sac(student activity centre) and other fractions . apart from all of this your inclination is most important whether you like electrical engineering or computer science .you can check on their respective websites to know more specifically nit warangal cse “http://www.nitw.ac.in/departments/cse” iitpelectrical engineering “http://www.iitp.ac.in/index.php/schools-and-centers/engineering/electrical-engineering.html”",
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d4e7c85cc81a74b25b3092a8ffd46351 | hello sir please suggest me books for mathematics for iit jee.i am trainee faculty so i need books for advance level for both theory and problems.mir publication is good option.but question format is old.are there any good reference books? thanks | askiitians.com | 2021.21 | [
{
"text": "for iit jee,it will be better to solve speciliased book for any specific topic like for calculus u can prefer i.a maron, for coordinate u must prefer s.l. loney.",
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] |
|
33dc3ceb1514fb560ec10a1dfdf0b2ac | i have got 153 marks in iit jee 2010. i m of sc category. can you plz tell which branch i can get in iit bombay, kanpur and delhi ? | askiitians.com | 2021.39 | [
{
"text": "hi , please click the link given below for iit jee cut off: http://www.askiitians.com/iit-jee-2010-cut-offs.aspx click the link below link for opening and closing rank of iit : http://www.askiitians.com/iits-2009-2010-opening-and-closing-rank.aspx cutoff in new iits check the link give below : http://jee.iitd.ac.in/openclose09.htm (this link includes the more detail analysis) for code of the cources check the councelling broucher 2009. all the best !! regards vijay luxmi",
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c784f58f70790f8fbde58661281d7818 | what happen when a dielectric is placed partialy in an elecyric field... | askiitians.com | 2021.25 | [
{
"text": "dear nitesh the electric field generated by the charge stored on the capacitor plates must be partially canceled out by an opposing electric field generated by the dielectric itself when it is placed in an external electric field .",
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7de3d64863e49944d7b2a2dc127ca0a5 | heat energy received by the earth from the sun is due to (a) convection (b) radiation (c) reflection of light (d) transmission of light | askiitians.com | 2021.43 | [
{
"text": "dear student the answer is option b regards",
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},
{
"text": "the greenhouse effect is caused by radiant energy from the sun passing through the earth's atmosphere. land, plants, and bodies of water absorb radiant energy as heat. approximately one third of this heat energy is reradiated back into the atmosphere where it is mostly absorbed by water vapor and carbon dioxide.",
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07206803d08bc84e2b08e727e895cddc | why do insects are attracted by light? | askiitians.com | 2021.25 | [
{
"text": "dear amarnath there is no single scientific explanation for this behavior, however a popular theory is that insects attracted to light use it as a navigational aid. an insect flying north, for example, could judge its direction by keeping a natural source of light such as the sun or moon on its right side. this method works well as long as the source of light remains constant and at a distance. if an insect encounters a round incandescent porch light , however, it becomes confused by the light source. a moth will continue to circle a light because it instinctively wants to keep the light on a certain side of its body while navigating please feel free to post as many doubts on our discussion forum as you can. if you find any question difficult to understand - post it here and we will get you the answer and detailed solution very quickly. we are all iitians and here to help you in your iit jee & aieee preparation. all the best. regards, askiitians experts badiuddin",
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},
{
"text": "dear amarnath, to understand this phenomenon, you need to know about phototaxis. phototaxis is an organism's automatic movement toward or away from light. cockroaches are an example of a negatively phototactic organism. you've probably noticed how they scurry back into dark corners and crevices when you illuminate their late-night snacking party in your kitchen. insects attracted to light use it as a navigational aid. an insect flying north, for example, could judge its direction by keeping a natural source of light such as the sun or moon on its right side. this method works well as long as the source of light remains constant and at a distance. if an insect encounters a round incandescent porch light, however, it becomes confused by the light source. a moth will continue to circle a light because it instinctively wants to keep the light on a certain side of its body while navigating. 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 himanshu geed",
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c4a9c7c2936175f8e24dfe9bdf45c95f | if surface density of charge be sigma the electric field near the surface would be | askiitians.com | 2021.39 | [
{
"text": "dear student, it depends upon whether the surface is a conductor or not. the electric field near some charge carrying plate will be , but if the point is near to the surface of a conductor, then the electric field will be .",
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|
8db1b078980cd79e95c02c769c62892f | if a baloom going up,then it's p.e.....and why? | askiitians.com | 2021.25 | [
{
"text": "as the balloon goes up, there are twoforces acting on it- gravity and the upward force of buoyancy. the buoyant force is obviously greater in magnitude than the gravity. in addition, the ballon moves in the direction of buoyancy. therefore, potential energy decreases. 'win exciting gifts by answering the questions on discussion forum.'",
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a581e5f4bd8ab3b857d4b2297e93d52f | a cylindrical diving bell,whose length is 150cm is lowered to the bottom of the tank.the water is found to raise 50cm in the bell. find depth of the tank.atmospheric pressure is 1000cm of water and temperature as constant. | askiitians.com | 2021.25 | [
{
"text": "pressure at surface =1000x150a pressure in water=100ax(1000-50+h) p1v1=p2v2 (950+h)100=1000x150 h=1500-950=550",
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}
] |
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283f961aecb246d15ecaeca6b44dd8dd | resonance | askiitians.com | 2021.31 | [
{
"text": "in certain molecules or polyatomic ions where the bonding cannot be expressed by one single lewis formula and it actually because of delocalised electrons.\nso. we can say that it is the process where delocalisation of pi bond or electrons with in the molecules and ions.\nin organic chemistry : delocalisation of pi bond when alternate sigma -pi bond is there . thanks & regards\nakshay meena, askiitians faculty\nm.tech, iit kharagpur",
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a50b268adc3cf2840d18bb7fe9887eca | why nickel does not low spin octrahedral complexes? and why co 2+ gets easily oxidised to co 3+ in presence of a strong ligand? | askiitians.com | 2021.21 | [
{
"text": "dear student, ni have outer most electronic configuration 4s2 3d8.the hybradisation for octahedral complex is sp2d3.for low spin octahedral complexes the hybradisation is d2sp3.there is two cases for nickle for forming octahedral complexes. first case: when the ligand is weak then there is no pairing up of electrons in the d-orbital hence there is no d-orbital for acquiring the d2sp3 hybradisation.hence low spin complexes are not formed. second case:when the ligand is strong there is a pairing up of electrons.but there is only one vacant d-orbital available for hybradisation.so here also d2sp3 hybradisation is not formed.hence low spin octahedral complex is not formed. thus we can concluded that nickel doesn't forms low sin octahedral complexes. 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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"text": "dear student, please find the answer to your question. ni have outer most electronic configuration 4s 2 3d 8 .the hybradisation for octahedral complex is sp 2 d 3 .for low spin octahedral complexes the hybradisation is d 2 sp 3 .there is two cases for nickle for forming octahedral complexes. first case : when the ligand is weak then there is no pairing up of electrons in the d-orbital hence there is no d-orbital for acquiring the d 2 sp 3 hybradisation.hence low spin complexes are not formed. second case :when the ligand is strong there is a pairing up of electrons.but there is only one vacant d-orbital available for hybradisation.so here also d 2 sp 3 hybradisation is not formed.hence low spin octahedral complex is not formed. thus we can concluded that nickel doesn't forms low sin octahedral complexes. co 2+ is easily oxidised to co 3+ in the presence of a strong ligand because in presence of strong ligand the 3d electrons pair up leaving two orbitals empty to be involved in d 2 sp 3 hybridisation. thanks and regards, kushagra",
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] |
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281a9ef799998c032ec5977d34e34abc | . . . . . . . . . . . biasing of p-n junction offers high resistance to current flow across the junction. the biasing is obtained by connecting the p – side to the . . . . . . . . . . . terminal of the battery. | askiitians.com | 2021.43 | [
{
"text": "sol. reserves, negative terminal",
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}
] |
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62186fec8608de8f5aa4478b633e2eb7 | the centre of a wheel rolling on a plane surface moves with a speed v0
. a particle on the rim of the wheel
at the same level as the centre will be moving at speed | askiitians.com | 2021.21 | [
{
"text": "as it is on the rim of the wheel so the distance means r =r^2+r^2. and here we get r become root2r and from equation we know v=w*r we get the answer v=root 2u",
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"is_accepted": false
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] |
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e7f390c91647b0c0b5e2da36f62e58ad | plese give me priority list for b arch for these institutes. spa bhopal, spa vijaywada, nit trichy, nit calicut , nit jaipur and nit bhopal. | askiitians.com | 2021.39 | [
{
"text": "dear rachit, the order must be : nit trichy>bit ranchi>nit bhopal>nit jaipur > nagpur >nit calicut > hamirpur>raipur>patna> spa delhi 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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|
9cac39df84e60c7244cc35970eef6c26 | 3. give one e:r.ampk each of a binomial. of | askiitians.com | 2021.39 | [
{
"text": "(i) binomial of degree 35 is + .x. (ii) monomial of degree 100 is - 7x100",
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] |
|
5647810b1455fb968534d3a4421b3f62 | x^2+y^2=36 is a function or not .why? | askiitians.com | 2021.39 | [
{
"text": "hi chase pfa for solution",
"name": "",
"is_accepted": false
},
{
"text": "no its not a function trick: 1-first draw a graph of this given function clearly this represent equation of circle (if you not studied this just refer class11 ncert) 2-this graph comes out to be circle with centre as origin and radius as 6 (equation of circle x^2+y^2=6^2) 3-now till here if any dificulty then please read just about this equation in ncert the next steps are as simple as that 4-now just draw a line parallel to y axsis on the anywhere on the circle 5-you may see that the line parallel to y axis intersect the graph at two points this represent that the equation is not a function remember: if any line parallel to y axis intesect the graph at 2 or more than two points then then the given function can never be a function",
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] |
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2e0fe588a33fc34e47e31c9e162c01a0 | i get around 155 marks in aieee 2011. i have obc quota. i am a keralite. will i be able to get into the nit calicut?? | askiitians.com | 2021.39 | [
{
"text": "hi, askiitians provide the aieee cut off along with the opening and closing ran given below : http://www.askiitians.com/aieee-2011-estimated-rank.html click for cut off: http://www.askiitians.com/aieee-2011-cut-offs.html thanks and all the best ..",
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|
62c1b08d0fef483b2c00e7b0c1784b97 | august: [physics:units and measurement, mathematical tools, basic kinematics (motion along straight line, uniform and non-uniform acceleration equations] [mathematics: set theory, functions, sequences and series (ap, gp, am and gm] [chemistry: mole concept, atomic structure]........ september: [physics: kinematics (complete), kinetics] [mathematics: logarithm, trigonometric identities, ratios and functions, sequences and series (hp, hm, agp and relations)] [chemistry:chemical bonding, redox reactions]....... october: [physics: work, energy and power, impulse and momentum] [mathematics: trigonometric equations and inequations, properties of triangle] [chemistry: gaseous state, liquids]...... november: [physics: system of particles and motion of rigid bodies, solids and fluids] [mathematics: points and lines, circles, parabola] [chemistry: equilibrium, thermodynamics]....... december: [physics: surface tension and viscosity] [mathematics: ellipse, complex numbers] [chemistry: periodic classification of elements, metallurgy]........ january: [physics: gravitation and revision of all previous things] [mathematics: inductions and revision of all previous things] [chemistry: s-block elements and revision of all previous things]...... february: [physics: thermal physics] [mathematics: hyperbola, quadratic equations, inequations and expressions] [chemistry: organic chemistry]...... march: [physics: revision of all previous topics ] [mathematics: revision of all previous topics] [chemistry: isomerism and revision of all previous topics]....... april: [ nothing (because school final exams)] any changes required or any still good way like any chapter that should be finished first? please guide me. | askiitians.com | 2021.31 | [
{
"text": "its great that you took this much pain to write down al this.this shows that the biggest thing you need to clear jee is with you,motivation. now,dont you think that your december is little less work for physics....you should shift half of the solids and fluids part from november to december...i kno dt you may be having terminal exams at school bt still whole of december is too much for surface tension and viscocity.i mean you should give more time to the rotation chapter which you plan for november. the most important thing is that you should keep your plan fexible and update it regularly .your plan is otherwise good!!!",
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dd041216f0011bfcde9fe293e9239b58 | the open box is made up of wood which is 3 cm thick. the external length breadth adn height are 1,48m, 1.16 m and 8.3 dm. find the cost of painting inner surface at rs 50 per sq meter | askiitians.com | 2021.39 | [
{
"text": "hii the first thing is making a figure . the box is having a thickness which will mean that the surface which needs to be painted will be two open cuboids and reduce each side by 6 in length ecxept height in order to find out the dimension of tthe inner cuboid best of luck",
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] |
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0b570c5b5df67356ba94a36665a0f0b4 | sir my rank is 32,000 in aieee.can u please suggest me what colleges i cn get in counselling..?? akanksha | askiitians.com | 2021.39 | [
{
"text": "dear akanaksha, with your rank , its difficult to get the nit but you can check out the other options available to you by clicking the link given below.. you can get bew nits as well bit ranchi, patna. closing and opening rank of all the nit’s http://www.askiitians.com/aieee/aieee-counselling aieee cut off … you can check here … http://www.askiitians.com/aieee-2010/aieee-2010-cut-offs.aspx please feel free to post as many doubts on our disucssion forum as you can. if you find any question difficult to understand - post it here and we will get you the answer and detailed solution very quickly. we are all iitians and here to help you in your iit jee preparation. all the best. regards vijay luxmi",
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] |
|
00aefca69d0107ca099dcd066c094268 | got air 3858 in jee adv...i wish 2 take ee...what should be the correct order of choosing new iits? | askiitians.com | 2021.43 | [
{
"text": "iit mandi, ropar, jodhpar, gandhinagar are good",
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}
] |
|
3de7dd5cbb2109107ad0a04358297dbb | hello all, i needed notes of topics. any topic, scanned docs in english and presentation wud also do. my mail id ruchi\[email protected]. i need more than 1000 notes. so asking all to arrange. do write if u have any queries. while you are sending send me the topic and professor name for sure. you may connect for a disucssion skype:rgulatee | askiitians.com | 2021.43 | [
{
"text": "try www.schoolnotes4u.com",
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|
04585b3cb572910e3bb66aaad60e8d61 | paraflageller body of euglena helps in locomotion photoreception reproduction osmoregulation | askiitians.com | 2021.31 | [
{
"text": "photoreception regards, trisha agarwal b.sc, university of delhi",
"name": "",
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}
] |
|
608ac5ca733740db8704e36d2e1bf9e2 | how can overgrazing destroy forests ? | askiitians.com | 2021.21 | [
{
"text": "due to overgrazing, the young trees get eaten or killed by trampling. the lower leaves are eaten up and the roots and trunks are injured by cattle.",
"name": "",
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}
] |
|
74d5f56e15b8e53aa7a1e3666d877e66 | tanx.sec2x.dx | askiitians.com | 2021.25 | [
{
"text": "integral tanx.sec2x dx =integral sinx/(cosx.cos2x) dx =integral sinx/cosx(2cos^2x-1) dx put cosx =t on diff. w.r. to x -sinx dx=dt =>integral (-dt)/t(2t^2-1) using partial fraction we get integral (1/t -1/root2(t.root2.-1) -1/root2.(troot2+1)) =logt-1/2loh(troot2-1)-1/2 .log(troot2+1) =log cosx-1/2log(2cos^2x-1) =logcosx -1/2 logcos2x =log (cosx/ root of cos2x) thanks & regards rinkoo gupta askiitians faculty",
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] |
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855623eae9e5d7659661cd21320bef58 | 24. it is a hot summer day, priyanshi and ali are wearing cotton and nylon clothes respectively. who do you think and would be more comfortable and why? | askiitians.com | 2021.43 | [
{
"text": "cotton being a better absorber of water than nylon and helps in absorption of sweat followed by evaporation which leads to cooling. so, priyanshi is more comfortable, whereas ali is not so comfortable.",
"name": "",
"is_accepted": false
}
] |
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ee760d91ab3c81ae94c5a3b532838413 | if one root of the quadratic equation ax 2 + bx + c = 0 is equal to the n – th power of the other, then show that (ac n ) 1/n + 1 + (a n c) 1/n + 1 + b = 0 | askiitians.com | 2021.21 | [
{
"text": "sol. let α, β be the roots of eq. ax 2 + bx + c = 0 according to the question, β = α n also α + β = -b/a ; αβ = c/a α β = c/a → α. α n = c/a → α = (c/a) 1/n + 1 then α + β = - b/a → α + α n = -b/a or (c/a) 1/n + 1 + (c/a) n/n + 1 = -b/a → a .(c/a) 1/n + 1 + a .(c/a) n/n + 1 + b = 0 → a n/n + 1 c 1/n + 1 + a 1/n + 1 c n/n + 1 + b = 0 → (a n c) 1/n + 1 + (can) 1/n + 1 + b = 0 hence proved.",
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] |
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4c89b27d969f70a80ab4368c2fdd3145 | sir, i am going to write iit-jee in 2012.my question is, is it enough to solve all types of problems from good books to cract iit-jee? or any extra study material is needed? if yes, can you pls suggest an institute which provides good study material. | askiitians.com | 2021.25 | [
{
"text": "dear student, what matters is you shud be familiar with all types of questions and concept wise you shud be very confident... 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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|
31ea0ce524458e0c31f35d5a08df7f0e | how many time constants will elapse before the power delivered by the battery drops to half of its maximum value in an rc circuit? | askiitians.com | 2021.39 | [
{
"text": "sol. power = cv^2 = q * v now, qv/2 = qv * e^-t/rc ⇒ ½ = e^–t/rc ⇒ t/rc = -in 0.5 ⇒ -(-0.69) = 0.69",
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"is_accepted": false
}
] |
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f8075e6c6d8a2cab8f725d5681af5cf8 | 18. how much momentum will a dumb-bell of mass 10 kg transfer to the floor if it falls from a height of 80 cm? take its downward acceleration to be 10 ms–2. | askiitians.com | 2021.31 | [
{
"text": "mass (m) = 10 kg final velocity (u) = 0 ms–1 distance (s) = 80 cm = 0.8 m acceleration (a) = 10 ms–1 by third equation of motion : v2 – u2 = 2as v2 – (0 ms–1)2 = 2 × 10 ms–2 × 0.8 m v = 4 ms–1 momentum transferred to the floor : = m × v = 10 kg × 4 ms–1 = 40 kg ms–1",
"name": "",
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}
] |
|
f35438ca85cc2cd8a95d70a4e0684c82 | the area of the region enclosed by the curves y = x, x = e, y = 1/x and the positivex-axis ? | askiitians.com | 2021.21 | [
{
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{
"text": "….......................................................................................................................................",
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|
d72855a22154a8466f7d29a51e2f5f48 | sir ,please answer thus question. it is from aiats as soon as possible............... | askiitians.com | 2021.31 | [
{
"text": "we can get three resonating structures from the given compound.first the -ve charge can be circulated to the position of the first double bond so that would be one. continuing the circulation of charge we will get the second one.then the -ve charge gets shifted on top of the oxygen.so that would be third resonating structure.",
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] |
|
ea60c1017092219c25c6011cf940878e | the curve y=x 3 +x 2 -x has two horizontal tangents. the distance between these two tangents is | askiitians.com | 2021.25 | [
{
"text": "y' = 3x^2 + 2x - 1 3x^2 + 2x - 1 = 0 (3x - 1)(x + 1) = 0 x = 1/3, -1 at x = 1/3, y = 1/27 + 1/9 - 1/3 y = -5/27 at x = -1, y = (-1)^3 + (-1)^2 - (-1) y = 1 the distance is 1 - (-5/27) = 32/27 units, c",
"name": "",
"is_accepted": false
},
{
"text": "dear student dy/dx = 3x^2 + 2x -1 from this x = -1, -1/3 y(-1) = 1 y(1/3) = -5/27 y = -5/27 distance = |1+5/27|= 32/27",
"name": "",
"is_accepted": false
}
] |
|
b07be9a3bde7ce4b66d66d7d121cbcf0 | i...want...to...know...about...enat...mtech...cutoffs...pl..help...me as...my...rank...is...386...so...i..have...any...chance...of..getting... a...seat? | askiitians.com | 2021.25 | [
{
"text": "dear sulava, cut off rank for admission in manipal institute of technology during the last three years course cut off rank 2005-06 2006-07 2007-08 b.arch 115 52 104 be-biomedical engineering 3598 6262 13708 be-biotechnology 2364 6325 6653 be-chemical engineering 3789 7371 13077 be-civil engineering 5143 9094 9819 be-computer engineering 1141 1218 2775 be-e&e engineering 1831 1964 4029 be-e&c engineering 838 1007 2370 be-i&p engineering 3589 5075 9931 be- mechanical engineering 2237 2459 3987 be-printing technology 14754 14414 22373 be-information science 1444 1636 3308 be-i&c engineering 2438 2996 9124 b e- mechotronics -- 3876 3937 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. askiitians expert 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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|
d890e23e8118008bd8c7960a0c4f40dd | q.1 show that n square minus 1 is divisible by 8 , if n is a odd positive integer? q.2 show that one and only one of n+1 . n+2 or n+4 is divisible by 3 when n is any positive integer.? | askiitians.com | 2021.25 | [
{
"text": "let n=2m+1, n 2 -1 =4m(m+1),either m or m+1 is surely even and is multiplied by 4. therefore n 2 -1 is divisible by 8 if nis odd let n=3,it is easy to see that the second question is wrong.",
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] |
|
7496ec397bae8e335846bfad850d2084 | why mettalic character increases down the group | askiitians.com | 2021.21 | [
{
"text": "",
"name": "",
"is_accepted": false
},
{
"text": "because it is capable to loose electrons.",
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"is_accepted": false
}
] |
|
6c476a1d0517ef0c62a388da55f5c772 | in a triangle if r:r1:r = 2:12:5 then prove that triangle is right angled which is not isosceles. | askiitians.com | 2021.31 | [
{
"text": "can you tell what the symbols r, r1, r. stands for. are they radius of incenter and radius of circumcenter, then what is r1. or something else?",
"name": "",
"is_accepted": false
},
{
"text": "yes r is radius of incircle ,r is radius of circumcircle and r1 is radius of excircle opposite to side a.",
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}
] |
|
d2f11cbfd4d27f732cb842ad81832ee2 | write breifly your opinion about what we should do safeguard our oceans? | askiitians.com | 2021.39 | [
{
"text": "1. proper maintenance and care. 2. should treat waste water before let mixing into see. sher mohammad b.tech, iit delhi",
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}
] |
|
a3670816d4e4ddb50b62fb3d975c09eb | <p>what are the minimum marks that a ph student should score to get a seat in iit (ece branch)</p> | askiitians.com | 2021.25 | [
{
"text": "dear sriram, no doubt the cutoff for ph students go quite down but i would suggest you to score atleast 33% of the total marks.. we are all iitians and here to help you in your iit jee preparation. all the best. if you like this answer please approve it.... win exciting gifts by answering the questions on discussion forum sagar singh b.tech iit delhi",
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|
1431f805e59f3b63670db8a741664828 | if u is the distance of the real point from the principal focus of a spherical mirror | askiitians.com | 2021.21 | [
{
"text": "dear student your question is incomplete. please check and repost this. you can also attach an image. i will be happy tp help you. regards arun (askiitians forum expert)",
"name": "",
"is_accepted": false
}
] |
|
eab460e3d0302c4fea0ef270bdf0ba49 | what is mosley’s law ? explain briefly its importance. | askiitians.com | 2021.39 | [
{
"text": "moseley's lawis anempirical lawconcerning the characteristicx-raysthat are emitted byatoms. the law was discovered and published by the english physicisthenry moseleyin 1913. it is historically important in quantitatively justifying the conception of the nuclear model of the atom, with all, or nearly all, positive charges of the atom located in the nucleus, and associated on an integer basis withatomic number. until moseley's work, \"atomic number\" was merely an element's place in the periodic table, and was not known to be associated with any measureable physical quantity.moseley was able to show that the frequencies of certain characteristic x-rays emitted from chemical elements are proportional to the square of a number which was close to the element's atomic number; a finding which supported van den broekandbohr's model of the atom in which the atomic number is the same as the number of positive charges in the nucleus of the atom. thanks and regards apoorva arora iit roorkee askiitians faculty",
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|
a00f900eb338bf8e0bdc9b2d2896c370 | question 48 plz solve and explain........... ......... ........... | askiitians.com | 2021.43 | [
{
"text": "dear student 4 option is incorrect because p will lose 3 electrons to complete octet so it will form p+3 and q will gain 2 electrons to complete octet so it will form q-2. they will form compound p2q3. 2 option is incorrect because for n shell, n=3 , so it will have highest mass number. order of mass r>p>q with regards mahima",
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}
] |
|
0141ec06833697f7071f9d8942f6ad09 | what to do for coaching entrance exam ??? | askiitians.com | 2021.21 | [
{
"text": "best 2 be strong grip on ur basics and then follow any good objective book like arihant etc. approve if u like",
"name": "",
"is_accepted": false
},
{
"text": "without going to any of the coaching you must have to force yourself on self study so that you can crack any competitive exam",
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}
] |
|
5aaab1ec3ed17493fe42b7f05d88b8ca | how do we think the displacement of rod ab will be affected if a stronger horse-shoe magnet is used | askiitians.com | 2021.21 | [
{
"text": "dear student if a stronger horse-shoe magnet is used then the displacement of rod ab will increase. thanks",
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"is_accepted": false
}
] |
|
797b543d829d754c2fe8ba9728ebcfe0 | how much marks/rank do i need to get a seat in aiims delhi (sc category) ? | askiitians.com | 2021.21 | [
{
"text": "aiims never disclose marks obtained by any candidate, it gives result on percentile basis. so there is no one sure about marks required to get admission in aiims delhi or any other aiims college. i am teaching for last five years. i can guess you need to score at least 150+ for general category, 140+ for obc, and 130+ for sc/st category to get admissionin aiims delhi. if you want to get admission in any other aiims college you have to score at least 110+ for gen category, 105+ for obc, 95+ for sc/st",
"name": "",
"is_accepted": false
},
{
"text": "aiims never release marks got by any candidate, it publishes the result on the percentile basis.",
"name": "",
"is_accepted": false
}
] |
|
5e47173f06e59a4117dce045cb20f9b5 | a rod of length l has a total charge q distributed uniformly along its length.it is bent in the shape of a semicircle.find the magnitude of the electric field at the centre of curvature of the semicircle. | askiitians.com | 2021.31 | [
{
"text": "here, since length of rod is l, so we can write:perimeter of semi-circular arc = length of rodπr=l, where r is radius of curvaturenow we know that, for a circular arc subtending angle ¢(phi) at the centre, the magnitude of electric field at centre of curvature is given by:e=[2kqsin(¢/2)]/¢r^2 , where r is radius for curvature.so here, in the given condition:¢=π, r=l/π ( from the equation of first step)so now electric field at centre of curvature in given condition will be:e=[2kqsin(π/2)]/π(l/π)^2e=2πkq/l^2hope it helpsthanku very much",
"name": "",
"is_accepted": false
}
] |
|
066cdaac813273cedc4eb5d3d926a5db | find the intervals in which f (x) =
|x-2|
x2
is strictly increasing and strictly decreasin | askiitians.com | 2021.21 | [
{
"text": "f(x) = (x-2)x2 ; x>=2; strictly increasing (2-x)x2 ; x<2; strictly increasing thank you ruchi iit delhi askiitians faculty",
"name": "",
"is_accepted": false
},
{
"text": "f(x) = (x-2)x2 ; x>=2; strictly increasing (2-x)x2 ; x<2; strictly increasing thank you ruchi iit delhi askiitians faculty",
"name": "",
"is_accepted": false
}
] |
|
2984c1e0b25f930ed1abb84ab2e8741c | the no. of ordered pairs of integers (x,y) for which 9x 2 -6x + y 2 = 24 is= ? | askiitians.com | 2021.31 | [
{
"text": "hi basit, the given eqn can be written as (3x-1) 2 +y 2 =5 2 , 3 2 +4 2 =5 2 is the only way 25 can be written as sum of sq of two integers. so either 3x-1 = +/- 3or4 and y = +/- 3or4 solve the equations, and you can see (-1,3) (-1,-3) are the only pairs of integers satisfying the equation. so there are two ordered pairs. hope that helps. best regards, ashwin (iit madras).",
"name": "",
"is_accepted": false
},
{
"text": "i liked that but the ans is 3 ordered pairs.",
"name": "",
"is_accepted": false
},
{
"text": "hi basit, absolutely.... yeah it should be three ordered pairs. i'd taken only the phythogorain triplets.... the most trivial one, i'd ignored. if m 2 +n 2 = l 2 , then m=0,n=l is also a set.... so 3x-1 = 5 and y=0 is another trivial possibility. x=2, y=0.... which is the other ordered pair (2,0). so total of 3 ordered pairs. regards, ashwin (iit madras).",
"name": "",
"is_accepted": false
}
] |
|
634afc46a12edad5e7b9d65bc1a863ed | when we put some crystals of potassium permanganate a beaker containing water, we observe that after some time whole water has turned pink. this is due to (a) boiling (b) melting of potassium permanganate crystals (c) sublimation of crystals (d) diffusion | askiitians.com | 2021.21 | [
{
"text": "hi anushka, it is because of the difussion of kmno 4 crystals with water. best regards, ashwin (iit madras).",
"name": "",
"is_accepted": false
}
] |
|
767740ed1b5fbc1f7c5bae79cd8f671d | a simple pendulum of length l is suspended from a ceiling of a cart which is sliding without friction on an inclined plane of inclination §.what wil be the time period. | askiitians.com | 2021.43 | [
{
"text": "t = 2pi(l/a) 1/2 (a is normal component of acc) resolving mg in two components mgcos@ along normal of plane & mgsin@ along the plane... t = 2pi(l/gcos@) 1/2",
"name": "",
"is_accepted": false
}
] |
|
23200edb399f768a69b0e24826a07ecb | sir i m getting 71 marks in jee main (maths=34, physics=20, chemistry=17) and expecting 85% in chhattisgarh state board , i m obc so what is my chance to qualify for advance???? | askiitians.com | 2021.31 | [
{
"text": "you are likely to appear for jee advanced as the cutoff for obc category is likely to be around 70-75.but you need to work very hard for making it to the iit\npractice more and more questions and revise theory through questions.dont panic & be confident",
"name": "",
"is_accepted": false
},
{
"text": "can i get any nit??????",
"name": "",
"is_accepted": false
}
] |
|
008a77abbfb1dbb7c1bcee4e90f9dcda | are there charged energy quantas?? | askiitians.com | 2021.31 | [
{
"text": "dear sanan no in electrostatics there is no such concept for energy. only the charge is quantized. you will study quantization of energy at atomic level in atomic structure and modern physics. all the best. akash goyal askiitiansexpert-iit delhi 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": "",
"is_accepted": false
}
] |
|
b08a8ed519da9fcac4fdfd0f44d9b3eb | ∫(x 2 +4x+4)/(x 2 +5x+7)(x+2)½ | askiitians.com | 2021.25 | [
{
"text": "dear tejas akole ∫(x 2 +4x+4)dx/(x 2 +5x+7)(x+2)½ =∫dx(x+2) 2 /(x 2 +5x+7)(x+2)½ let x+2 =t 2 dx =2 tdt =2∫dt(t) 4 /(t 4 +t 2 +1) =2 ∫dt-2 ∫( t 2 +1)dt/ (t 4 +t 2 +1) =2t-2 ∫(1+1/t 2 )dt/{(t-1/t) 2 +3} now put (t-1/t) =u (1+1/t 2 )dt=du =2t-2 ∫du/(u 2 +3) +c now solve and put tha value ou u and t in terms of x 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 tejas. regards, askiitians experts badiuddin",
"name": "",
"is_accepted": false
}
] |
|
ec5805be244f3d50444b596a4b21012a | hello sir i got 294 in bitsat 2011. can i get mechanical engg in hyd or goa. plz help me. thanx abhishek | askiitians.com | 2021.21 | [
{
"text": "yes you can get mechanical engg",
"name": "",
"is_accepted": false
}
] |
|
7b3eea1b76b43b3da101d5c080459427 | if you drop a permanent magnet, it becomes less magnetic.why? | askiitians.com | 2021.43 | [
{
"text": "it's pretty unlikely, but not impossible, that you could bump a piece of iron and make it a magnet. to bump a piece of iron and turn it into a magnet you would have to bump it in such a way that a perfect vibration travels through the material. the reason that would be hard to bump a piece of iron and make it magnetic is because of the way vibrations propagate in the material. vibrations radiate out from the point of impact and are going at different angles relative to a straight line - the line you would like the domains to line up with. non-uniformities that exist in all materials also change the flow of the vibrations in a material",
"name": "",
"is_accepted": false
}
] |
|
4f3b5d561e61f7ea28d4069af7677aa5 | sir please give me solution of questions no 48 in simple and easy way that i understand clearly please do sir as soon as possible.......... | askiitians.com | 2021.25 | [
{
"text": "hi dear we are sorry but the question is not clear. please post a clear picture of it in order to get your doubt cleared thanks",
"name": "",
"is_accepted": false
}
] |
|
6c98addd979a9b384ef761825a421f5b | write down the equation of a pragressive wave of amplitude 0.02 m and period 0.05 s travelling along a streached string with a velocity 10 m/ sec | askiitians.com | 2021.43 | [
{
"text": "equation will y = asin(wt - kx) a = 0.02 t = 0.05 so w = 2 /t = 40 v = 10 v = w/k 10 = 40 /k so k = 4 then y = 0.02sin(40 t – 4 x) hope it clears.",
"name": "",
"is_accepted": false
}
] |
|
8d8af3aa35ab617f8db8d3e81ce182e8 | what is the diff. of sin6x+cos6x/sin3x+cos3x | askiitians.com | 2021.31 | [
{
"text": "dear mustafa, its diferentiation will be : - ( 6cos6x - 6sin6x ) /(3cos3x - 3sin3x ) or, 2 ( cos6x - sin6x ) / ( cos3x - cos3x ) thank you.",
"name": "",
"is_accepted": false
},
{
"text": "dear mustafa, its diferentiation will be : - ( 6cos6x - 6sin6x ) /(3cos3x - 3sin3x ) or, 2 ( cos6x - sin6x ) / ( cos3x - cos3x ) thank you.",
"name": "",
"is_accepted": false
},
{
"text": "hi mustafa y=(sin6x+cos6x)/(sin3x+cos3x) dy/dx = {(sin3x+cos3x)(6cos6x-6sin6x)-(3cos3x-3sin3x) (sin6x+cos6x)}/ (sin3x+cos3x) 2 now simplyfy dy/dx =(3 cos9x -9sin3x)/ (sin3x+cos3x) 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. name. regards, askiitians experts badiuddin",
"name": "",
"is_accepted": false
}
] |
|
2c59bb78f830eaacb3e545cde0bd78ce | statistics questions and answers for class 10 question 44. in an arranged series of an even number of 2n terms the median is \_\_\_\_\_\_\_. | askiitians.com | 2021.39 | [
{
"text": "answer: explaination: mean of nth term and (n + 1)th term",
"name": "",
"is_accepted": false
}
] |
|
1986afcd460442a492352ebdd5f704f1 | find dy/dx when x=2t/1+t^2 and y=1-t^2/1+t^2 | askiitians.com | 2021.39 | [
{
"text": "hi thanks & regards, arun kumar, btech,iit delhi, askiitians faculty",
"name": "",
"is_accepted": false
}
] |
|
76c52eb88eff660bbb7e14de1157946c | which biology theory book is the best book for neet so that i can answer all the mcq? | askiitians.com | 2021.39 | [
{
"text": "you should buy askiitians study material, which is comprehensive and precise.",
"name": "",
"is_accepted": false
},
{
"text": "you should read ncert because in neet 85 questions are from ncert for solving mtg you can take any module of any coaching because all content are same",
"name": "",
"is_accepted": false
}
] |
|
c73244bccc0a84cba80b960f07619f77 | tell me question in books about mcq type. because we have a test in book not in exercise please i request you that will be your most kindness please | askiitians.com | 2021.31 | [
{
"text": "you can use question bank it has all type of question the best i recomend is educart question bank. or you can use osswall question bank",
"name": "",
"is_accepted": false
},
{
"text": "you can use question bank it has all type of question the best i recomend is educart question bank. or you can use osswall question bank i am sure that that will help you",
"name": "",
"is_accepted": false
}
] |
|
792261371c16a47b210ea7909bb6cdad | which is more basic among ortho methyl aniline and para methyl aniline? and why | askiitians.com | 2021.31 | [
{
"text": "dear maheep, ortho one is more basic due to inductive effect of the methyl group. 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",
"name": "",
"is_accepted": false
}
] |
|
1cfe89a961a243b5bf9fb9a94d474c1e | in a 2 nd degree homogenous en,h^2 | askiitians.com | 2021.21 | [
{
"text": "dear student your question is incomplete. pease complete the question. i will be happy to help you. regards arun",
"name": "",
"is_accepted": false
}
] |
|
20ce95d6c0f0a38cb7d5edb72af4cfdc | i have ranked 43215 in aieee. please specify what type of college and trade of engineering may i get in this criteria? | askiitians.com | 2021.39 | [
{
"text": "hii you can go for either the top ones in the average colleges or the average ones in good colleges. i am providing you with a list of colleges which you can use to fill for your admission. lovely professional university -lnmiit -kiit -tezpur university",
"name": "",
"is_accepted": false
}
] |
|
398d708aaffcdcc2dad6c458b3fd36a4 | cosecx-sinx=m and secx-cosx=n eliminate x | askiitians.com | 2021.31 | [
{
"text": "1-(sinx)^2=msinx 1-(cosx)^2=ncosx add both terms 1-((cosx)^2+ (sinx)^2 )=msinx+ncosx 1-1=msinx+ncosx msinx=-ncosx tanx=-n/m x=inverse(tan)(-n/m) sher mohammad b.tech, iitd",
"name": "",
"is_accepted": false
}
] |
|
d42dd98640b685143ad2b24ea4628fbe | what are the advantages of inter-cropping and crop rotation? | askiitians.com | 2021.25 | [
{
"text": "dear student advantages of using inter-cropping: (i) it helps to maintain soil fertility. (ii) it increases productivity per unit area. advantages of using crop rotation: (i) it improves the soil fertility. (ii) it avoids depletion of a particular nutrient from soil. (iii) it minimise pest infestation and diseases. thanks",
"name": "",
"is_accepted": false
}
] |
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