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59beb177227e8d65ce09199ae070604f | i am rajat from kota studying in 10th class.i came from coaching at around 8:30pm.can anybody please suggest a way through which i can do my jee preparation. | askiitians.com | 2021.21 | [
{
"text": "dear rajat now as far as time managment is concerned, you need to schedule definite timings foe each paticular subject . self study matters a lot, self study means apart from all other studies, the total time that you devote for the study of yourself it would be tter for you if you follow the following schedule. physics: 2 hrs a day self study apart from tutions and school time. chemisrty: 2 hrs a day apart from tution and school timings. maths: 3 hrs a day apart from tutions and school. this schedule is only for your self study. now in tutions whatever you do daily, go with the quick revision at that very moment after the completion of the topic, in all subjects. note that this rhythm shoulsd not break any how. focus on analytical topics rather than theoratical topics. for further information you vist the following link : http://www.askiitians.com/iit-jee-articles/how-to-prepare-for-iit-jee-when-you-have-only-4-months-in-your-hand. http://www.askiitians.com/iit-jee-articles/prepare-online-for-iit-jee-and-aieee. 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 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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31598374d1ad7240eff6d1e83b0066b5 | 2)cos12 – sin12 /co12+sin12 + sin147/ cos147 1 -1 0 none | askiitians.com | 2021.21 | [
{
"text": "dear krisha [cos(90-78) - sin12/ cos(90-78) + sin12 ] + sin147/cos147] = [sin78 - sin12]/[sin78 + sin12] +sin(180-33)/cos(180-33) = [(2 cos 45 sin 33)/(2 sin 45 cos33)] + sin 33/(-cos 33) since cos 45 = sin 45, hence they can be cancelled = sin 33/ cos33 - sin 33/cos33 = 0 regards arun (askiitians forum expert)",
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6aa585c94320da7ba2cb1f5df7519766 | is ifbi institute in delhi a fraud.or it give guaranttee for job in bank | askiitians.com | 2021.21 | [
{
"text": "hi you can visit their official website and can enquire about your queries in student zone. also if you are looking for job guarantee then you can opt for written contract with them. for more assurance, it is sguggested that directly walkin into their office and get your all queries resolved and take best decision. good luck!!",
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b16fc6f25f53344794cabe073f6b5817 | what is natural disaster.its control,effect on environment causes? | askiitians.com | 2021.25 | [
{
"text": "all the calamitiess on the earth that occur naturally and cause a lot of destruction of human beings like earthquake, flood, landslide, volcanic erruption, etc are called as natural disasters. its control measures are inlisted below; by doing afforestation and reforestation. by preserving natural means and resources. by managing and controlling the overgrowth of population. by controlling the pollution of land, air, water, sound, and many other. by controlling global warming, etc. its environmental effects are; destruction of property of human beings. global warming increases. climate increases. population increases. eco-system will be altered. pollution will increase. deforestaion will occur. quality of soil will decrease, etc.",
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8295a9ede48ce979b817ffbc3d24a46b | if two lines intersect at a point, and if one pair of vertically opposite angles are acute angles, then the other pair of vertically opposite angles are \_\_\_\_\_\_\_\_\_\_. | askiitians.com | 2021.31 | [
{
"text": "dear student if two lines intersect at a point, and if one pair of vertically opposite angles are acute angles, then the other pair of vertically opposite angles are obtuse angles. thanks",
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1982f2985b005933e7f004aa15cc8d31 | a non conducting ring of radius r has a charge q uniformily distriubuted over it. a magnetic field perpendicular to the plane of the ring changes at the rate db/dt. the torque experienced by the ring = ?? . will there be any difference if the ring is conducting?whyor why not? | askiitians.com | 2021.39 | [
{
"text": "dear golu , case i : apply following equation - ∫ line e .d l = - dø/dt i.e line integral of electric field over a surface is the rate change of flux through that surface. note that bold letters are vectors. now , varying magnetic field produces electric field , direction given by right hand thumb rule. we can see that electric field is in circular direction along the ring , assume it to be e (magnitude) . it will be constant as ring is symmetrical. therefore , e.2∏r = ∏r 2 * db/dt ; e = (1/2)*db/dt . now we can easily see torque = eqr = (1/2)*db/dt*qr. case ii: in first case there was no conduction so ring moved with charges but in this case charges shall move inside the ring because ring allows conduction . so a current will flow and ther will not b any torque on ring. 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. 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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a01dbf50bd396b7e17a77c2caf79a285 | cleavage of frog development ends with formation of: a. bastocoel b. morula c. gastrula d. neurula | askiitians.com | 2021.25 | [
{
"text": "dear student cleavage of frog formed at end are irregular , and there are many balls of cells are formed , which is called as morula . so, b would be the correct ans. hope this helps good luck",
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298d7bc9e403d91fa87e0f2142801ca3 | what are the applications of raman spectrum | askiitians.com | 2021.31 | [
{
"text": "one of the most important application which is still used widely is infrared spectroscopy has been widely recognized for years as an important, powerful and elegant tool for the analysis and identification of materials and for the study of structures and dynamics of molecules hit approve if useful",
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30b1c98ccbffbf80798bdfabcdb29b0d | i got 464 obc rank.. i am getting cse btech in roorkee and cse dual degree in kharagpur... with regard to placements which one is better | askiitians.com | 2021.39 | [
{
"text": "cs branches are good anywhere but in dual degree you will have to wait but more knowledge will get you better job and kharagpur is better than roorkee",
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fd9a87526a35a41cc20bb344105b1d40 | how ear helps in maintaining equilibrium?explain properly | askiitians.com | 2021.43 | [
{
"text": "the semicircular canals and the vestibule of the inner ear together help to maintain the balance and equilibrium of the body. in these two structures of the inner ear, there are three semicircular canals and the vestibule (has the saccule and utricle). the ear maintains both static and dynamic equilibrium. static equilibrium is maintenance of the proper head position in response to changes in linear motion such as walking. dynamic equilibrium is the maintenance of proper head position in response to rotational movement such as turning. the vestibule lies between the semicircular canals and the cochlea (eardrum). the vestibule is responsible for maintaining static equilibrium while the semicircular canals maintain dynamic equilibrium.",
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dce27a6ff36dd8f6abd02057abaac07d | a boy take one or 2 steps at a time how he can climb a 10 steps | askiitians.com | 2021.43 | [
{
"text": "dear aashish, let a be the number of ways to climb up a stairs of n steps with each time climbing 1 or 2 steps. we are to compute a . to climb n steps, we may first climb 1 or 2 steps. in the former case, we are to climb n −1 more steps, and this can be done in a(n-1) ways. in the latter case, we are to climb n − 2 more steps, and this can be done in a(n- 2) ways. therefore, we obtain the recurrence relation a(n).= a(n-1) + a(n-2) since the recurrence relation for a(n) depends on two previous terms, we need two initial conditions. we have a (1)=1 and a(2) = 2 . by direct computation, it is easy to obtain a(10) = 89 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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77543df8b4456f4dc157b6ff5ad9e773 | is it possible to get into nit with board 85%.....i mean top 6 nit’s......now iam joining long term.....i just wanted to ask is it possible or not......if yes what marks to be needed in jee mains | askiitians.com | 2021.43 | [
{
"text": "you can get with the good jee marks, 85 is a decent one",
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4daed1d2ac2795757772842ac46d03af | what is avg and percentage placements of last 2-3 years of iit roorkee electrical iit guwahati ece | askiitians.com | 2021.39 | [
{
"text": "both are good but iit roorkee > guwahati",
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|
90c33e9309790ceacb7d45a63f46d85b | a cycle rider is riding in a cycle what is the direction of the friction force on both the wheel | askiitians.com | 2021.21 | [
{
"text": "the force is against the motion of the cyclist. the cyclist oppses the friction first and then starts to move at the start.",
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5ef46f944c842768f6acc5ff3e7cfe84 | sir/madam, i have recently gave the cbse 10 th boards. can anyone tell me the books which i must buy in class 11 ? | askiitians.com | 2021.21 | [
{
"text": "please specify the entrance exam/board/olympiad you are taregting. according to that i will recommend you some books.",
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"text": "sir, i am targeting for jee-mains and jee-advanced in 2017. so can you please give me the list of books that i must buy for pcm ?",
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{
"text": "you can find list of books here http://www.askiitians.com/important-books-iit-jee.aspx among these you can buy any for a particular topic. for eg op tandon is best for organic chemistry similarly for otheres you can choose any of the listed book.",
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{
"text": "thank you sir.",
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{
"text": "prepaaring for jee mains at home is very tough, but not impossible. i requires great discipline to study alone. first you require to make a plan because it is easy to get derailed from the track withut a plan to run on. first you should make yearly plan. then a monthly plan , and finally a plan of the week, the topics you wish to complete this week. as for the books, you should not buy too many books. buy one good book for each subject and study it thoroughly. in addition to thee books you may buy one refernce book for each subject too. physics: arihant objective series. reference: “funamentals of physics by resnik halliday” chemistry: ncert. reference: “arihant series” mathematics: ml khanna, refernce:”arihant series” above all always be positive about your preparation. believe in yourself, in you ability to complete he task. this is going to be tough, but you can do it. please approve if you like my answer.",
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9e51daa33599ea5738f156be050a360f | the volume of a block of gold is 0.5 m cube.if it is harmmed into a sheet to cover an area of 1 hectare,find the thickness of the sheet? | askiitians.com | 2021.39 | [
{
"text": "volume of golden block = 0.5m³ area of the sheet = 1 1 hectare = 10000 the thickness of the sheet = volume /area =0.5 / 10000=0.00005 m",
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f726026962395ec117b86b8364f064c4 | evaluate ∫∫xydxdy where x,y belong to the region of postive quadrant x+y＜=1. | askiitians.com | 2021.39 | [
{
"text": "dear student this topic is out of syllabus in iit jee examination, this you will study in first year of your mathematics good luck",
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|
be03da5a57a74adeac5548a579845659 | what is the number of solutions (x, y) of the equation 3x+y=100, where x and y are positive integers? | askiitians.com | 2021.25 | [
{
"text": "the given equation can be rewritten as y=100-3x ----- (i) since, the minimum value of x can be 0,hence putting this value in eq (i), we get y=100 which is the maximum value of y and minimum value of y can be 0 since it is positive integer. hence, y is an element of [0,100] under given condition --------(ii) now, the given equation can be rewritten as x=100-y/3-----(iii) putting minimum and maximum value of y from eq (ii) in eq (iii) we get, x is an element of [0,33] when x is positive integer----(iv) from eq (ii) and eq (iv) 0 to 33 is the common value for x and y, hence, number of solution for (x,y) of the equation 3x+y=100 is 34",
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b1d2a9b69b5b773d4d6ce61bfbe7e6c0 | if tera is acute and (1-a^2)sin teta=(1+a^2)cos teta then sin teta= | askiitians.com | 2021.25 | [
{
"text": "solved below.........................................................................................................",
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},
{
"text": "there was mistake in previous solution, posting again......................................................",
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56be836638c909a75a181652df10693d | 3 valid points on difference between zoospores and condia | askiitians.com | 2021.31 | [
{
"text": "zoospores conidia motile nonmotile have flagella no flagella in different shape all are similar shape",
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|
abf7e360f69d8bed21fbbe592e3c0403 | maria invested ₹ 8,000 in a business. she would be paid interest at 5% per annum compounded annually. find. the interest for the 3rd year. | askiitians.com | 2021.31 | [
{
"text": "dear student p =₹8,000 r = 5% per annum n = 2 years the interest for the next one year, i.e. the third year, has to be calculated. by taking₹8,820 as principal, the s.i. for the next year will be calculated. s.i. = p x r x t 100 = 8820×5×1 100 =₹441 thanks",
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a9f41a5ee9e8ff6559ae8f892cf5d772 | if the weight of metal chloride is x gram containing y gram of metal, the equivalent weight of metal will be? | askiitians.com | 2021.43 | [
{
"text": "answer for this question is y(35.5)/{x-y]. this can be answered by equating equivalent of metal and metal cloride .hope this will do",
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{
"text": "let metal chloride be mcla(×-y)/35.5a = x/(x/a)equivalent weight of metal is y/a = y÷((x-y)/35.5)^(1/2)answer: y*{(35.5/(x-y))^(1/2)}",
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75632dc453345772701b43ffeee676ba | sir i secured 2778 rank in iit jee 2015 and i want to go for cse . as per my rank i can get cs in 1. indore 2. mandi 3.jodhpur.4 patna.5. bubeneshvar bbs 6. ism dhanbad as per my research i got finall this conclusions that average package in cse is highest in patna 11.58 in indore 10.3 also perment campus has been build by iit patna and iit mandi in indore date mentioned 29 feb 2016 and jodhpur june 2016 but according to last year cuttoff rank was lowest for iit patna i dnt know about the current progress of perment campus of iit indore so my question is what prefernce list should be there on above stated iits?????????? | askiitians.com | 2021.43 | [
{
"text": "http://www.askiitians.com/iit-jee/advanced/opening-closing-rank.html try to follow iit hyderabad » iit indore » iit patna..>> ism dhanbad...",
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{
"text": "http://www.askiitians.com/iit-jee/advanced/opening-closing-rank.html iit hyderabad » iit indore>> iit patna>> iit jodhpur » ism dhanbad » iit bhubhneswar..",
"name": "",
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},
{
"text": "sir u not listed mandi and also give me reasons to put indore over patna",
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{
"text": "dear abhijeet, as per your given information the prefernce order can be, 1.)iit hyderabad 2.)iitindore 3.) iit patna 4.)ism dhanbad 5.)iit jodhpur 6.)iit bhubhneswar. i hope you this will help you and you can also try for nits like warangal, suratkal,trichy which are of better ranking than those you have listed and average package is also high. and dont run behind packages and stuff think about teaching and infrastructur outlookindia.com/article/top-engineering-colleges/291203 e.",
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caf0d4159ed671514490ee1e0259e4ac | take @=theta sec@+tan@=x [email protected]@=y eliminate @ with proper solution | askiitians.com | 2021.31 | [
{
"text": "sec@tan@ = y ...........1 sec@+tan@ = x ...............2 squaring eq 2 (sec@) 2 + (tan@) 2 + 2sec@tan@ = x 2 1+2(tan@) 2 +2sec@tan@ = x 2 (sec 2 @ = 1+tan 2 @) 1+ 2(tan@) 2 + 2y = x 2 ....................3 (from eq 1) squaring eq 1 (sec@) 2 (tan@) 2 = y 2 (1+tan 2 @)(tan 2 @) = y 2 ...................4 substituting tan 2 @ from eq3 in eq4 ( x 2 -2y +1)(x 2 -2y-1) = 4y 2 (x 2 -2y) 2 - 1 = 4y 2 x 4 - 4x 2 y = 1 this is the required relation",
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1f180a3810e3214ff32c43d253df5cce | i have got an air 16346 overall category rank 13231. state rank (delhi)1544 and category rank 1422 . do i have a chance of getting into dce/nsit??? | askiitians.com | 2021.21 | [
{
"text": "hiii the chances of admission in dce or nsit is good though butgetting best branches might be a source of fight in it with your rank you might get some not so famous branches but your admission is guaranteed . best of luck",
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0574b7ae57bbaf10648c681cdcef07e6 | why does phenol not answer naoh/i 2 test, although it reacts with naoh individually? | askiitians.com | 2021.31 | [
{
"text": "for giving naoh/i 2 test the compond should contain ch 3 co- group or ch 3 ch-oh group as in phenol both groups are not present so it not give above test.its reaction with naoh give c6h5ona but it not further react with i2 to form iodoform (chi 3 ).",
"name": "",
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},
{
"text": "naoh/i 2 is used as a reagent for iodoform test, which needs a ch 3 co- or ch 3 choh- in its structure for undergo the reaction. as phenol does not have these groups in its structure, it doesn’t undergo the iodoform test . however, under same conditions, it undergoes ring iodination to give a mix of o- and p-iodophenol",
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529b8867e91f9b1a9d67e373ce02f73d | can we control the effect of h2so4 on human body with any strong base? | askiitians.com | 2021.21 | [
{
"text": "it can be controlled by taking an an antiacid simply. it would neutralize the acid simply into the stomach. and helps in regain the neutrality.",
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b84db982b1d445c7392e2d55df705332 | in a cell, what are lipid rafts anfd lipid rafts are rich in which type of material? | askiitians.com | 2021.31 | [
{
"text": "hai, samarth mishra, raft-means layered arrangement. lipid raft in a cell represents the combination of lipid bi layer and proteins in cell membrane. lipids are a type of bio-molecules. where as lipid represents oils and fats which we consume everyday as cooking oils. oils=liquid lipids (ground nut,coconut oil) fats=solid lipids (butter,ghee,yogurtetc.,) the number 2 in the given image includes lipid rafts (lipids+ proteins)",
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"text": "lipids are not homogenously distributed in membranes, but that some are organized into microdomains in the bilayer, called ‘detergent-resistant membranes’ or ‘lipid rafts’ the lipids rafts are rich in sphingomyelin and cholesterol . the ability of select subsets of proteins to partition into different lipid microdomains has a good effects on their function, e.g. in t-cell receptor and neurotrophin signalling. the highly organized environment of the domains gives a signalling, trafficking and membrane fusion environment. hope you understand my answer. all the best..",
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f7913797355d6a4feaa7344784c7fde8 | a cone is cut through a plane parallel to its base and then the cone that is formed on one side of that plane is removed. the new part that is left over on the other side of the plane is called [ncert exemplar problems] (a) a frustum of a cone (b) cone (c) cylinder (d) sphere | askiitians.com | 2021.43 | [
{
"text": "answer: a",
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0faab64c26a0683f0426e59add51d091 | a street car moves rectilinearly from station a to the next station b with an acceleration varying according to the law f = a - bx, where a and b are constants and x is the distance from station a. the distance between the two stations and the maximum velocity are ? options: a) x=(2a/b), v=(ab -1/2 ) b) x=(b/2a), v=(a/b) c) x=(a/2b), v=(ba -1/2 ) d) x=(a/b), v=(a 1/2 /b) | askiitians.com | 2021.25 | [
{
"text": "acceleration f=a−bxf=a−bx … … … (1)the acceleration is decreasing with increasing x hence velocity will be maximum where f=0f=0. from equation (1) this point is at x=abx=ab.further, f=dvdt=dvdt.dxdx=vdvdxf=dvdt=dvdt.dxdx=vdvdxwith this we can write equation (1) asvdvdx=a−bxvdvdx=a−bxor, vdv=(a−bx)dxvdv=(a−bx)dx… … … … (2)for maximum velocity vmaxvmax, we differentiate equation (2) with proper limits.∫vmax0vdv=∫ab0(a−bx)dx∫0vmaxvdv=∫0ab(a−bx)dx|v22|vmax0=|ax−bx22|ab0|v22|0vmax=|ax−bx22|0abor, vmax=ab√vmax=abfor the distance ss between the two stations, we integrate equation (2) noting that velocity at both the station is zero.∫00vdv=∫s0(a−bx)dx∫00vdv=∫0s(a−bx)dxor, 0=|ax−bx22|s00=|ax−bx22|0sthis gives s=2ab",
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732941756ffc8c3e387beff6f6669ce3 | please solve this,............... ...........................plz..see the attachment........ | askiitians.com | 2021.25 | [
{
"text": "the power stored in the battery during charging= vit= 15×10×8 watt hours= 1200 watt hour the power dissipated by the battery during discharging = 5×15×14 = 1050 watt hours watt hour efficiency = (1050/1200 )100= 87.5% done!!!",
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362ac39a2585416cdd4d520939587271 | my entrance exam's ranks are: iit-e18091 aieee-33337(all india) bitsat score-235 now please tell me in which college can i get a seat. with marks i have scored in bitsat i may get a seat in bits hyderabad withb.pharm.(hons.) branch.can i join bits and take dual degree at the end of first year? or may i join some local engineering college | askiitians.com | 2021.39 | [
{
"text": "dear hemant, neither of the ranks you have scored is goin to fetch you anything good in any of the colleges so its beter for you to opt for some good core branche in some good private engineering college. thank you.",
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306275f7e94219987c76defd25541401 | two sounds of equal intensity i generates beats. the max. intensity of sound produced in beats will be: a)i b)2i c)4i d)i/2 thanks!! | askiitians.com | 2021.39 | [
{
"text": "dear prajwal kr intensity max= ((i 1 ) 1/2 +(i 2 ) 1/2 ) 2 as i1=i2 therfore by the realtion we get (i+i) 2 =4i c)is correct..!!! thnks..!!",
"name": "",
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},
{
"text": "i'' = root(i1^2) + root(i2^2) +2root(i1)root(i2)cos @ =root(i^2) + root(i^2) =2i please approve :)",
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{
"text": "one very important fact two non coherent sources will never give a clear interference pattern hence you only talk about the average of them maxium = minimum = i + i = 2i always...",
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|
d4beb4ec58996b8815541aadf8aa874f | two ponit charges +9e and +e are kept at a distance from each other. a third charge is placed at a disctance x from +9e on the line joining the above two charges. for the third charge to be in equilibrium x is ? | askiitians.com | 2021.25 | [
{
"text": "if the distance between 9e and e charges is d......then third charge will be in equilibirium at x=3d/4 or x=3d/2",
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|
9cf510c88e824a95cb07f8857b4609ba | my air foe jee is 6862 and aieee rank is 4584 where should i take admission | askiitians.com | 2021.21 | [
{
"text": "if u get admission in any of old iit leaving guwahati, in fine branch like mech.,civil,aerospace,chemicalthen go for iit else go for nits and iiit hyderabad............... my neighbour vaivasvat manu maheshwari has around 5000 air in jee and 4500 in aieee...he belongs to rajasthan and took admission in mnit, jaipur in 4 years b tech. programe in electrical branch...",
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a837f30a21cd7863879c175a960a5647 | 46. assertion: brain is a delicate organ which is protected from injury. reason: the bony box protects the brain from any shock. | askiitians.com | 2021.31 | [
{
"text": "answer: c explanation: (c) assertion is true but the reason is false.",
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ff5406b76567261ca8f24ae8d5121c82 | the total no. of electrons in a cl2 bond is 18. when the bond breaks each cl atom is left with 9 e- only.. but how do say that its nuetral ? | askiitians.com | 2021.39 | [
{
"text": "dear student i think you are confused with the term neutral.any specie withno charge is known as neutral specie. the dissociation of cl2 leads to the formation of neutral species that is a specie with no charge.",
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171a8c0782e626784593f8ad977ed52b | sir,i am in 30,000 to 40,000 in jee main ..what college in will get | askiitians.com | 2021.25 | [
{
"text": "you can get nit warangal with electrical communication or better. thanks & regards arun kumar iit delhi askiitians faculty",
"name": "",
"is_accepted": false
},
{
"text": "you can get nit or thapar college of engg.punjab",
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"is_accepted": false
},
{
"text": "you should apply for roorkee college of engineering roorkee. it is the best engineering college in uttarakhand, top 50 engineering college in india. this the best engineering college in north india. you may contact at 7500108111.",
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"is_accepted": false
},
{
"text": "it will be better if you apply for roorkee college of engineering. you just try to visit roorkee college of engineering. this college got best placement award since 2 years by indian government. this college providing you 4 years b.tech course in different fields like petroleum engineering, mechanical engineering, automobile engineering, electrical and electronics engineering, electronics and communication engineering, civil engineering. our contact no.7500108111",
"name": "",
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},
{
"text": "dear student, keep checking the status of seats and branches by visiting the official websites of nits and also by checking the merit, this way you will get to know about your standing there and if you deserve, will certainly get a seat there, or else you may try seeking admission at some other highly reputed institutions like – bits, pilani,.................college of engineering, trivandrum,....................lovely professional university, phagwara,.....................bhu, varanasi",
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|
ea7188b43c239b012b009bc7eb384c2d | finding pi why do we take x/2a sinax when x = cosax | askiitians.com | 2021.21 | [
{
"text": "please mention specific question where you found this",
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}
] |
|
4e74455e477f9102e14a04aab0ec920a | s=(3/1!+2!+3!)+(4/2!+3!+4!)+.............+(2008/2006!+2007!+2008!) then s is : a)1/2 - 1/2006! b)1/2 - 1/2008! c)1/2006! - 1/2008! d)1/2007! - 1/2008! | askiitians.com | 2021.39 | [
{
"text": "answer is option b). the 'r' th term can be written as (r+2)/r!+(r+1)!+(r+2)! = (r+1)/(r+2)! = 1/(r+1)! - 1/(r+2)!. this sum can be telescoped(finite difference method) to get the required answer.",
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c062683e025b96b676e8586cae97a9d1 | sickle cell anaemia ischaracterised by elongated sickle like rbc with a nucleusan autosomal linked dominant traitcaused by substitution of valine by glutamic acid in beta globin chain of haemoglobincaused by changing in single base pair of dna | askiitians.com | 2021.25 | [
{
"text": "dear student i didn't get your question. please make it clear or you can attach an image too. i will be happy to help you. regards arun",
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|
52e1fa01012a0b599db00e0d86905a35 | between iit roorkee geological technology (m.tech.) and bits-pilani mechanical or civil, what should i opt for | askiitians.com | 2021.31 | [
{
"text": "if you are in top 10% of your class then you will be highly placed in iitr gt and if not you will get average package. but if you want to play safe i would advise you for bits pilani mechanical but not civil.",
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"text": "now i’ve been alotted chemical in pilani (2nd iteration). waiting for iit third round. how do my options weigh up now? thanks for the previous answer, by the way.@sourabh singh.",
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bdc138a6a65b8e299a5cd1aa34ca15fd | a barometer kept in an elevator accelerating upwards reads 76 cm of mercury column. is the pressure inside the elevator greater than or less than 76 cm of hg column? give explanation. | askiitians.com | 2021.39 | [
{
"text": "dear deepak, the barometer is accelarating upwards and g is acting downwards, so the pressure will be less than 76 cms. 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 7013835 7013835",
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0dce7af1fbb001da30d0272aa5a7b370 | fill in the blanks 1. the management of ……… resources requires a long term perspective. 2. ……… are ‘biodiverse hotspots’. 3. the government of india, has recently instituted an ‘amrita devi bishnoi national award’ for ……… in the memory of amrita devi bishnoi. 4. ‘khadin’ system of rain-water harvesting is practiced in ……… . 5. the chipko andolan originated from an incident in a remote village called.’……….’ in garhwal. | askiitians.com | 2021.43 | [
{
"text": "answers 1. natural 2. forests 3. wildlife conservation 4. rajasthan 5. reni",
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98c00dd501bf4262c1abaf3071bddb0d | for which compounds nahso3 is used for distinguishing btw them ? | askiitians.com | 2021.25 | [
{
"text": "the reaction is used to identify the coompounds which have groups larger than ch 3 around the oxygen, and due to sterric hindrance reaction will not occur. for instance que can be framed like this that which will react with nahso3 benzophenone , acetophenone , no yes approve if useful",
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a4ba21b76c3d3509a7f1dbec1d4007f9 | i got selected in sof imo 2 nd level . my score was 46 / 60 . please suggest any further books or sample papers. | askiitians.com | 2021.31 | [
{
"text": "international mathematics olympiad : work book - class 9 [the official olympiad book of reasoning - class 9]the official olympiad book of reasoning - class 9 you can also read some blog on askiitians.com start with following http://www.askiitians.com/olympiads.aspx",
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8859266be53815af221b3f1f23ec0247 | which of the following facts about the complex [cr[nh3]6cl3 is wrong | askiitians.com | 2021.43 | [
{
"text": "the following facts about the complex [cr[nh3]6cl3 is right the complex is an inner orbital complex .the coordination number of chromium is 6 and it is paramagnetic in nature.the hybridisationis d2sp3.also the complex give white ppt with silver nitrate solution",
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] |
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5be05b844e81452fd986243010494d50 | i am an sc candidatei am getting only around 100 marks can i get a good branch like aerospace,electronics or computer sc in bombay,madras,kharagpur or roorkee? what is the exact procedure during counseling? how do the iits alot a branch 2 a student of the categories? people say you should take up any branch that you get in an iitevry branch is goodis it true? | askiitians.com | 2021.39 | [
{
"text": "dear student, pls check opening and closing rank of college and branch that you want to take admission in on their official website",
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] |
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569d55c87a77acc4d77325125e5084f1 | in a closely packed face centered unit cell with all lattice position occupied by 'a' atom, body centred octahedral hole is occupied by atom 'b' having appropriate size. choose the correct statement (s) regarding such crystal (a) void % is 24.6 (b) % space occupied is 80.3 (c) formula of the compound a4b (d) formula of the compound is ab | askiitians.com | 2021.31 | [
{
"text": "dear student, the correct option is c)",
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194bf667b14413a1a017a8b85dcf936e | my daughter aieee 2009 rank is as follows all india: overall: 219205 sc category : 10523 state rank( andhra pradesh): overall : 27498 sc category : 1306 i have seen seat allotment in nit's through aieee 2008 opening and closing ranks. my doubt is in ai sc category the opening and closing ranks are only that of all india sc category ranks or all india overall ranks in which sc category candidates got ranks. please clarify. | askiitians.com | 2021.39 | [
{
"text": "dear raju, the rank displayed in the last year cutoff is all india overwall ranks in which sc category candidates got rank. thank you.",
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caa91fe88d9d8f5e76ecebe2103a7a3a | in meiosis, the centromere divides during a prophase i b metaphase i c anaphase i d anaphase ii | askiitians.com | 2021.31 | [
{
"text": "meiosis is completed in two separate divisions: meiosis i and meiosis ii. during meiosis i, there is separation of homologous chromosomes and number of chromosomes in the daughter cell is, thus, reduced to a half. the centromeres split during meiosis ii, at anaphase ii stage. thus during meiosis ii, number of chromosomes in the daughter cells remain the same as during the start of meiosis ii or as at the end of meiosis i which is exactly a half of the chromosome number of original parent mother cell.",
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95d39d373c1ed0480258d19f4dd71db5 | not selected in jee. n 15000 in aiee ..should i drop?? | askiitians.com | 2021.21 | [
{
"text": "we in askiitians provide quality rich material and assistance from real iitians. please feel free to give us a try through http://www.askiitians.com/contact-us.aspx",
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764f0d47a2aedf0eafc4d9ddcc895365 | what is the difference between hemostas and homeostasis?? | askiitians.com | 2021.21 | [
{
"text": "dear sushmitha i think u typed the ques wrongly by spelling . its haemostasis , and homeostasis . haemostasis refers to stopping the blood flow by clutting , and the blog converts into gel form and stay within the damaged vassels , its the first stage of wound healing .. and on the other side homeostasis means its the maintainance of body temp as well as the internal condition of the body in a stable equilibrium . u can say a variable is activly regulated to remain very nearly constant . hope it clears regards",
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54296052e332fe8d391b52d37c7478ae | as shown in the figure, a smooth rod is mounted just above a table top. a 10 kg collar, which is able to slide on the rod with negligible friction is fastened to a spring whose other end is attatched to a pivot at o. the spring has negligible mass, a relaxed length of 10 cm and a spring constant of 500 n/m. the collar is released frm rest at point a. here, in the figure, bc = 20 cm, ab = 40 cm, and b0 = 30 cm. what is it's velocity as it passes point b and c.??? | askiitians.com | 2021.25 | [
{
"text": "here is the diagram",
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{
"text": "dear sanchit calculate the length ao =50 cm spring natural lenghth is given 10 cm so springh is stretched by 50-10 = 40 cm total energy at point a=(1/2)*500*(.40) 2 =40 nm at point b spring stretched by =30-10 =20 cm total energy at point b=(1/2)*500*(.20) 2 +(1/2)*10*v 2 =10 +5v 2 at point c spring stretched by =26 cm total energy at point c=(1/2)*500*(.26) 2 +(1/2)*10*v 2 now first equate energy at a and b and find the velocity at b similarly equate energy at a and c and find the velocity at c 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 sanchit regards, askiitians experts badiuddin",
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63a692b920efdfaeecbd46cfffbd2c40 | please help me finding the range and domain of this modulus function question no.4 | askiitians.com | 2021.39 | [
{
"text": "obviously domain is r now let |sinx|= siny where y lies in 0 to pi so that |cosx|= cosy so function becomes 3siny-4cosy at y=0 it's value is -4 and at y=pi/2 it's value is 3 also f'(y)= 3cosy+4siny >0 so f(y) is an increasing function. hence range is [-4,3]",
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f7019fe025e8580ab457b601ee13b07d | can plane and convex mirror form real image. give ray diagram. | askiitians.com | 2021.39 | [
{
"text": "by using concave mirror we can produce a real image,and this can be achieved if the object is located at a distance greater than a focal length from the mirror surface.plane mirror and convex mirror only produces virtual image.",
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764c0c6af090c0dcc4c42dc47b9db21a | paper chromatography | askiitians.com | 2021.25 | [
{
"text": "it is the simplest technique of chromatography. the process is similar to thin layer chromatography, except that a strip of paper acts as the adsorbent. paper chromatography is based on a mechanism which is partly partition and partly adsorption. the paper consists of cellulose fibers having molecules of water strongly absorbed on them. this serves as the stationary phase while a suitable organic solvent is used as a mobile phase. a drop of the solution of a mixture to be separated is placed on a strip of chromatographic paper and the solven is allowed to travel along the strip. when the eluting solvent is allowed to travel along the strip. when the eluting solvent moves upward, it is termed ascending paper chromatography and when the eluting solven moves downwards, it is termed descending paper chromatography. whether the solven moves upwards or downwards, the mixture is subjected to partitionbetween the stationary phase and the moving phase. as a result of continuous and repeated prtitioning the rate of migration of each component of the mixture is different, which is responsible for their separation on the paper. finally, the paper strip is taken out and dried in air. the position of various components, on the paper, is determined by spraying some suitable reagent which makes the spots visible. in the separation and identification of amino acids, ninhydrin is used for developing the colored spots.",
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346306c18110ee77665a97b2d47a9689 | an object moving on the x axis with a constant acceleration increases its x coordinate by 108 m in a time of 3.68 s and has a velocity of 20 m/s at the end of this time. determine the acceleration of the object during this motion. answer in units of m/s^2 | askiitians.com | 2021.31 | [
{
"text": "hello student, v\\_f-v\\_i=at=a*3.68 v\\_f^2-v^2=2as=2*108*a =>v\\_f+v\\_i=at=2*108*a/a*3.68=216/3.68 sov\\_f=216/3.68+a*3.68=20 =>a=(20-(216/3.68))/3.68=-10.5 so the particle was actually accelerating. thanks & regards arun kumar askiitians faculty iit delhi",
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4e666fb3035271b71616cf5ff31da33d | sir, when i am doing my registration in online counselling of iit jee...they are saying an error always that no such roll number found....?? what does this mean sir or the server is too busy that is why it is showing such message or does it indicate something else...?? my rank is 3085 under sc category and 73 marks.....please answer me i am really confused...??? | askiitians.com | 2021.21 | [
{
"text": "i think you are not eligible for couselling , thats why this message is coming as sc category seats in iit are aroun d 1500, you may contact iit authorities to get more clarification. sher mohammad faculty askiitians b.tech iit delhi",
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1ee4aeb5c603ba4afece7944f44d4600 | a flask of volume 1l contains vapour of ch3oh at a pressure of 1atm and 25`c. the flask was then evacuated till the final pressure dropped to 10^-4 mm. find the number of molecules of methyl alcohol left in the flask. | askiitians.com | 2021.21 | [
{
"text": "the final pressure after evacuation is given in mm hg and hence has to be converted to atm. 760 mm hg = 1 atm thus 0.001 mm hg = 1. 31 x 10-6 atm. as we know that at stp conditions 1 mole of a substance occupies 22.4 l of volume and contains 6.022 x 1023 molecules here the volume occupied at stp = 1 litre. thus no. of moles = 1/22.4 = 0.044 moles of methanol and no. of molecules = 0.044 x (6.022 x 1023) = 2.68 x 1022 hence, at 1.31 x 10-6 atm pressure, no. of molecules will be = (2.68 x 1022 ) x (1.31 x 10-6) thus no. of molecules = 3.51 x 1016",
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75e84937ba93e404a0957ef0da872b25 | five balls of different colors are to placed in there boxes of different size. each box can hold all five. in how many different ways can we place the balls so that no box remains empty? | askiitians.com | 2021.43 | [
{
"text": "hello student, please find the answer to your question the various possibilities to put 5 different balls in 3 different size boxes, when no box remains empty : the balls can be 1, 1 and 3 in different or 2, 2, 1. case i : to put 1, 1 and 3 balls in different boxes. selection of 1, 1 and 3 balls out of 5 balls can be done in 5 c 1 x 4 c 1 x 3 c 3 ways and then 1, 1, 3 can permute (as different size boxes) in 3 ! ways. ∴ no. of ways = 5 c 1 x 4 c 1 x 3 c 3 x 3! = 5 x 4 x 1 x 6 = 120 case ii : to put 2, 2 and 1 ball in different boxes. selection of 2, 2 and 1 balls out of 5 balls can be done in 5 c 2 x 3 c 2 x 1 c 1 ways and then 2, 2, 1 can permute (different boxes) in 3! ways ∴ no. of ways 5 c 1 x 3 c 2 x 1 c 1 x 3! = 10 x 3 x 1 x 6 = 180 combining case i and ii, total number of required ways are = 120 + 180 = 300. thanks navjot kalra askiitians faculty",
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] |
|
a6071eb23b19d7ca20726356158ffcf3 | plz guide me in free,as we are not having enough money.my father only aim is that i should clear iit exam with good rank | askiitians.com | 2021.31 | [
{
"text": "dear student, ok we respect your father's sentiments, please ask any of your doubts we will guide u free of cost... 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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0b44d7ca13a56169674c87f8e26e04c4 | i wanted know whats is the most important topic for iit jee in11th after waves and fluid mechanics? | askiitians.com | 2021.31 | [
{
"text": "dear aabhas rotational mechanics & center of mass is one of the most important topic in physics from 11th...",
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d1b680172e94c6d7674cac3f502e03f9 | i m getting 86 in iit jeee 2010 70 in aieee 2010 and my caste is sc so wat engg coll may i get | askiitians.com | 2021.25 | [
{
"text": "hi , askiitians provide the iit jee cut off along with the opening and closing ran given below for iit jee cut off: http://www.askiitians.com/iit-jee-2010-cut-offs.aspx click for opening and closing ranks: http://www.askiitians.com/iits-2009-2010-opening-and-closing-rank.aspx you can check out the cutoff in new iits, check the link given 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. 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. regads amit yadav",
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f992f67823ad6831385c0c4bcf9928c8 | hi, i'm 12th pass.can you pl help me? what is the date of jee 2013 (mains & advance) ? is the mains just another aieee? what're the changes in the jee (advance) 2013? {i mean by syllabi, paper pattern, time limits for both} | askiitians.com | 2021.25 | [
{
"text": "hi, the students who have applied for the both entrance test of jee adavanced and jipmer has arguing to its officials to reschedule one of the test as they are missing one of the test due to the clash of the exam dates . so the jawaharlal institute of post-graduate medical education and research (jipmer) is scheduled to be held from 10 am to 12.30 pm on june 2nd, while jee (advanced) paper-i will be held from 9 am to 12 noon and paper-ii will be held from 2 pm to 5 pm.",
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65e10d80733f78ac20af7a3623e0addf | what is the name of the following compound? | askiitians.com | 2021.31 | [
{
"text": "can you rewrite it? it is not at all visible",
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|
971079193f54c29528ff37f40ba8bb54 | a straight wire of diameter 0.5 mm carrying a current of 1 a is replaced by another wire of 1 mm diameter carrying same current. the strength of magnetic field far away is (a) twice the earlier value (b) same as the earlier value (c) one-half of the earlier value (d) one-quarter of the earlier value | askiitians.com | 2021.43 | [
{
"text": "(b) the current is same in both the wire, hence magnetic field induced will be same.",
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6b1568aa18a51b9b8d3e9559b1a072fb | why the chemical reaction i.e reduction and oxidation place only on the surface of the electrodes? | askiitians.com | 2021.43 | [
{
"text": "electrodesare metallic or non-metallic rods immersed in the electrolyte. they conduct electric current through them. it provised surface area for the reaction to takes place.",
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d37722e5dbc0e49772a5d157536b0c6f | hello sir, my marks in pcm are 78,64,90 respectively and jee score is 71. your rank predictor is showing my rank will be around 26k . sir is this the correct estimated rank .actually i don’t find it possible!!!!!! | askiitians.com | 2021.25 | [
{
"text": "hi there are you in any category ? if so then only this is possible. you must have netered in reserved category.",
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},
{
"text": "sir i m in general category. please send me my estimated rank !!!!",
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{
"text": "what is your total percentage in class 12 ? but which your marks jee mains are very less for a rank.",
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{
"text": "my % of boards is 89%",
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{
"text": "hi as per your marks in jee main , which is very low your rank would not be usefull",
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{
"text": "k thanx for the discussion",
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{
"text": "ofcourse",
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{
"text": "hello sir,",
"name": "",
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"text": "sir i just wanted ur views on pes university , bangalore, ?? i mean should i join it ?? i have got a rank of 3566 in pessat 2015. your advice will really be a useful one!!!!",
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{
"text": "hi it has a good infrastructure for academics. it would be a good college for you. do chose your branch carefully. what are the branch options for you there. what are the other entrance exams that you have given ?",
"name": "",
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"text": "helo sir , one more question again!!!!!! sir i have been called for counselling at jaypee university of engineering and technology(juet – guna)!!!! how is the college and which branch is best there!!!! plz do suggest the branch",
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"text": "hi it’s is a good college. the branch is w.r.t. the rank you have there. the core brances are good there.",
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{
"text": "thanks a lot sir !!!! i wish to take cse !!!! how is the placement for cse there!!!! my rank is 446",
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"text": "i don’t think this rank will give you cse but my best wishes to you. ytou can anyway get very good branch. cse branch placement is always good.",
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"text": "sir, from this year the total no. of seats in cse have been increased to 300 (juet guna). so now what r my chances of getting cse????",
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{
"text": "hello shivam , i can suggest you some other options where there is quality education imparted for the betterment of students and towards the end of their degrees certain renowned and high class companies visit for campus placement drives, you can choose any of these for your bright career – allagappa college of tech, chennai,.....chaitanya bharthi inst of tech,hyderabad,.........chandubhai s patel inst of tech,anand,.....lovely profesional uni, phagwara",
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},
{
"text": "hi shivam yes w.r.t. to the seats , you have a good chance of getting cse.",
"name": "",
"is_accepted": false
},
{
"text": "thank a lot sir for the advice!!!! this is the best educational site i have come across!!!!",
"name": "",
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{
"text": "hi sir got 82 in jee mains …......... cbse board percentage is 89.4.......... i am from sc category........ what will be my rank and can i get into nit.....?/",
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},
{
"text": "dear mohit, for you rank kindly use askiitians’ link, your category and score may help you get in an iit/nit....i advise you to explore the official websites of iits/nits to find out if something is possible at any of them, otherwise visit the links of some private or other esteemed institutions like – basaveshwar engg college, bagalkot,........lovely professional uni, phagwara,.....jjtu jhunjhunu",
"name": "",
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}
] |
|
297168a5964ee31165aada076da355da | i've attached an image. please answer that question. it is from integration. | askiitians.com | 2021.39 | [
{
"text": "i think that since f is discontinuous at separate single points only (that is, the points at which f is disc do not form a continuous interval), so the integral should have the value ∫1dx = x from 0 to 2 = 2",
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|
5782c56a05c6c73bbd2eb5af09071eca | integration of a periodic function …............................................................ | askiitians.com | 2021.31 | [
{
"text": "hi, the integration of periodic function is always diverges if it is even & equal to ‘0’ if it is odd",
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] |
|
ba53388682a8f054d6471d9e9a80dcb6 | find out the derivative of y = sinx x degree by first principal. | askiitians.com | 2021.31 | [
{
"text": "y = sinx x taking log both sides. logy = x log(sinx) 1/y (dy/dx) = x (cosx/sinx) log(sinx) dy/dx = y xcotx log(sinx) dy/dx = sinx x xcotx log(sinx)",
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}
] |
|
0f490e441386ef350d2ba584319b50d6 | hello again. i have joined nit calicut and took cse. yesterday i got a call for second round of counselling at iist. what do u think is better. please advise. i am very confused. | askiitians.com | 2021.31 | [
{
"text": "hi i would suggest u for nit calicut , cse coz going to iist means bondage of job and something u wont like to do. cse @ nit calicut is good, as cs is one of he most desired branches for engineering and nit calicut is considered one of the good nits. so, dropping cs @ nit c and going to iist is not worth. moreover, these are more research based institutions, so u need to make ur decision by giving a thought on ur interest, that what u exactly want to do in ur future, is it some research work or any other kinda job. nit calicut has gt decent placement records fr the cs department and cs has gt numerous job oppurtunities in india at present, so that's nt a deal whether u'll get a good job. the job prospects are good fr ccs engg for the years to come.",
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] |
|
0641bc796fa877ac2d56544d069eafdd | evaluate ∫{1/logx – 1/(logx) 2 }dx..answer plz ..be quick i have my exams tomorrow | askiitians.com | 2021.21 | [
{
"text": "put logx=t then x= e^t 1/x dx = dt dx= e^t dt now the expression becomes e^t{f(t) + f’(t)} using this identity you will get the answer",
"name": "",
"is_accepted": false
}
] |
|
fd2633eead215f67855a43f4d080dde0 | hey i am average student an i have opted for pcm in my 12 standard . i very confused wether i should do engineering or not ( as i dont think i can clear jee ) . is hotel management a good line .? please suggest me something . | askiitians.com | 2021.21 | [
{
"text": "dear roshan dnt worry from now , maintain your confidence level . thats very imp . hotel management cannot be comparable with engg and with an iitian . and hotel management are also a good line but thats also difficult , nothing will be easy without your own intrest , study regularly from now , and u can easily clear jee , i have examples of many student who scored 60 percent in 12 th board and cleared jee ,, so, dnt loose your confidence . all the best regards",
"name": "",
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},
{
"text": "hey rohan i think you should go with your mind , you should understand what is your poential , and you should do what you good at , always remember average people are very successful in life , because they know how to make coordination between different things , do what you want to do , there is success in every line good luck ….........",
"name": "",
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}
] |
|
d70e95a3b2342df7a1238cab03b0a143 | please explain the concept of slope | askiitians.com | 2021.43 | [
{
"text": "dear teja, consider a function as : y = f(x). now if you find the rate of range of this particular function with respect to x: i.e dy/dx ; then this rate of change is known as slope. in more simpler words consider follwing values: at x = 3 : y = 7 at x = 5 : y = 10 so change in y = 10 - 7 = 3. and change in x = 5 -3 = 2. so slope can also be defined as : change in y / change in x = 3/2 = 1.5. i hope now you have understood the concept of slope. askiitians.com provides online iit jee courses and iit jee test series with iitians. click here to get free online test series and check your status timely or you can join us as our registered user for getting best iit jee study material or iit jee test series. click here to find iit jee packages or course details with askiitians. for further details visit the folowing links: http://www.askiitians.com//iit-jee-online-coaching.aspx http://www.askiitians.com/iit-jee-test-series.aspx http://www.askiitians.com/iit-study-material/ askiitians provide you all the best possible information, feel free to ask. all the best. thanks and regards. akhilesh shukla",
"name": "",
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] |
|
33115b68d5d999d48e2c95daab181036 | how the s character increases the electronegativity ? | askiitians.com | 2021.43 | [
{
"text": "it is so because => penetration is easy as they have node situated at the nuclues that is probable of finding the elctron is zero. and hence experiences stronger attraction from the nucleus of the atom.",
"name": "",
"is_accepted": false
}
] |
|
7ae8bd9ab0fba8cf1c01d21a3c02af0b | what is meant by volumetric stress.................... | askiitians.com | 2021.21 | [
{
"text": "dear student, when the deforming forces are such that there is a change in the volume of the body, then thestressproduced in the body is called volumestress. e.g. solid sphere placed in a fluid under high pressure. mathematically,volumetric stress= load / area = pressure intensity = dp. the ratio of volumetric stress to the corresponding volumetricstrainin a body is always constant, which is called as bulkmodulus of elasticity. it is denoted by the letter 'k'. its s.i. unit of stress is n m-2or pa (pascal) askiitians expert, yuvraj singh",
"name": "",
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}
] |
|
9308aefa7faade1da84c8aef309158ba | why the bacteria have the fastest reproduction rate? | askiitians.com | 2021.43 | [
{
"text": "@ neha bacteria have very simple thing that is their cell donot have division of labour . unlike a higher organism , where vtissue level organisation is required , bacterial cells are free of any such requirment . they divide by binary fission and thats the fastest one . their dna is not bound inside a nucleaus , which allow simoultaneous transcription and translation . also the lack of nucleaus speeds the dna replication rate . hope it clears your doubt all the best ..",
"name": "",
"is_accepted": false
},
{
"text": "they are simple orgamisms with cellular level of organisation. some of them are autotrophic while most of them are hetrotrophic and also they require very less food. this is why they replicate at a faster rate. hope you understand my answer.",
"name": "",
"is_accepted": false
}
] |
|
29624f4bc04d41c7b55655cb029de1b5 | kindly solvevthis and show , when i solved it the answer came as pi/1 . but it is not correct | askiitians.com | 2021.39 | [
{
"text": "no it is π:4 since length of wires is equal hence, 2πr=4a , a/r= π/2. now magenetic moment is directly proportional to area hence their ratio is =a²/πr² ={1/π}×{π/2}² =π/4. please do approve my answer if correct",
"name": "",
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}
] |
|
95a48cecfd015740d73dcff7dfefa3d4 | if the moon were twice as massive as it is now, and it has stayed in the same orbital radius about the earth as it has now, its new orbital period (in terms of its current orbital period t ) would be, a) t (b) 2t (c) t/2 (d) t/4 | askiitians.com | 2021.43 | [
{
"text": "orbital velocity = v =(gm/r) 1/2 finally mass is doubled so orbital velocity becomes v 1 = (2gm/r) 1/2 t = 2pir/v ( v is orbital velocity & r is orbital radius , t is time period) t 1 /t = v/v 1 t 1 = t/sqrt2",
"name": "",
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}
] |
|
0a6b3ef333d468010ad656a3e61b1ec0 | does magnetic field exist inside a current carrying coductor? | askiitians.com | 2021.39 | [
{
"text": "a current carrying conductor, such as a metal wire, will produce a magnetic field around it because of the motion of charge within the wire itself. this motion produces or sets up a magnetic field around the wire in the form of concentric circles. this electromagnetic effect is described in physics by the biot-savart law, an experimentally deduced inverse-square law. the effect is also described by ampère's law, which is derived from the biot-savart law. this law relates magnetic field and current. also, a magnetic field that is set up by an electrical current will produce a magnetic force. this force depends on the rate of charge transfer and the magnetic field. the force produced by a current-carrying wire depends on the length, the magnetic field, and the current, which is the charge flow per unit of time. please approve my answer!!",
"name": "",
"is_accepted": false
},
{
"text": "does the field produced due to the current carrying conductor exist inside the bulk of the conductor too?",
"name": "",
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}
] |
|
dee16aed367b60286c4164cdfd042c38 | let f(x)= – x^3 + b^3- b^2 +b – 1/ b^2+ 3b + 2, 0, 2x – 3 , 1 | askiitians.com | 2021.21 | [
{
"text": "i am not able to interpret your query. please write down the problem clearly so that i can provide you the meaningful answer. thanks & regards latika leekha askiitians faculty",
"name": "",
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}
] |
|
31b98a741f5fee89915ee11e69cc18ce | iam getting 170 in jeemains and my board percentile is 98.35(cbse2013) i blong to obc..if i dont make it to the iits iam planning to join mnnit or iiitallahabad in electricl or it if both options are valid which one is bttr and why ,if both are out of my reach suggst somother nits good at tht branch | askiitians.com | 2021.39 | [
{
"text": "see you got 170 cutoff for general people is 115 i think if you keep this way you may get in iit it is better than electrical because of increasing job oppurtunity these sectors offer a lot job than electrical now coming to nit nit warangal nit delhi",
"name": "",
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}
] |
|
460a8b406621f4915c82415245ecae01 | add without using number line: (b) (–13) + (+18) ,kutudlkdtulul8tehjtekytl | askiitians.com | 2021.25 | [
{
"text": "dear student (b) (-13) + (+18) = 5 thanks",
"name": "",
"is_accepted": false
}
] |
|
f71fe8968551d4919f2a146b11eb2553 | sir , what is superposition principle and what is interffernce actually? | askiitians.com | 2021.43 | [
{
"text": "adding of two vectors is superposition you will find it in ch-waves, electrostatics, etc",
"name": "",
"is_accepted": false
}
] |
|
7edb0ac15be2e7d5704599c5d49411bd | two mutually perpendicular infinitely long straightwires carrying uniformly distributed charges ofa, and are at x = 0 along y-axis and at x = aparallel to z-axis. then(1) the force between them is infinite(2) the force between them depends on(3) the force between them is independent of(4) the torque of force about x-axis on any wire isnon zero? | askiitians.com | 2021.39 | [
{
"text": "use coulomb’s law and basic mechanics theory",
"name": "",
"is_accepted": false
}
] |
|
5a74fcb942d850f3aca90cfc37aa85d5 | find the desyination of sinx cosx tanx secx cosecx cotx | askiitians.com | 2021.39 | [
{
"text": "dear student what is the meaning of desyination",
"name": "",
"is_accepted": false
}
] |
|
c1bd47141ffe1220678eb372b5ea5454 | hi, as per my rank i wud get mech in warangal.....but my parents dont want me to leave u.p. so i hav decided upon mech at nit allahabad. i wud like to know is there too much difference between oppertunities and package between the two clgs?? cant i make it up by putting more efforts & hard work?? | askiitians.com | 2021.43 | [
{
"text": "hi , acc to ranking nit allahabad comes at 5th rank and nit warangal is at third rank. well yes there is diff but not to larger extent. but waht i personally feel is whether you join the ‘ultimate’ branch or merely the ‘ultimate’ college, your capablities and hard work is all that matters.",
"name": "",
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}
] |
|
3060ac9c68f05373ba13ac866fa647eb | how to find the moment of inertia of a disc of variable density for ex - find the moi wrt centre of a disk of surface density which varies as (a + br) where r is distance from centre total radius - r? | askiitians.com | 2021.31 | [
{
"text": "dear aakash i=∫(dm)r 2 you have to take an element and find dm for that take ring of width dr at a distance r from the centre area of elemental ring=2∏rxdr mass of this ring= dm= (a+br)2∏rxdr i=∫(a+br)2∏r 3 dr limits from 0 to r just intrgrate i=2∏(ar 4 /4 + br 5 /5) 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
},
{
"text": "take elemental ring of r & thickness dr ... mass of this ring is dm = (a+br)2pirdr moment of inertia = dmr 2 now integrate this , take limit from 0 to r ... this will give the total moment of inertia .....",
"name": "",
"is_accepted": false
}
] |
|
57a0104f9c44b9c955047840ae748f19 | simplify and express each of the following in exponential form: (2^3 × 2)^2 | askiitians.com | 2021.39 | [
{
"text": "dear student = (2^3+1 )^2 ... [∵a^m × a^n = a^m+n ] = (2^4)^2 = (2^4)^2 can be written as = (2)4x2 ... [∵(a^m)^n= a^mn ] = 2^8 thanks",
"name": "",
"is_accepted": false
}
] |
|
fb0ed01db4058158618273f5e90f7081 | 74. balance the given chemical equation: | askiitians.com | 2021.31 | [
{
"text": "answer: explanation: 3fe(s) + 4h2o(g) → fe3o4(s) + 4h2(g)",
"name": "",
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}
] |
|
d0bcf03a60c9994bcefb20b57032693d | dear sir , i am getting around 294 in jee 2010 . what rank and branches can i expect | askiitians.com | 2021.31 | [
{
"text": "dear shubham, congrates for scoring good marks .. you can easily make it to any of old iit's .. your estimated rank would be in between 500 - 1000 ... 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. 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. 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.",
"name": "",
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] |
|
14496a875875cc50f838f40f31a066b1 | if x gm of steam at 100*c is mixed with 5x gm of ice at 0*c calculate the final temperature of resulting mixture the heat of vapourisation and fusion are 540cal/gm and 80cal/gm | askiitians.com | 2021.21 | [
{
"text": "dear chandrakesh let the final mixure is water at t degree centrigrate. heat given by vapor =heat taken by ice x*540 +x*c (100-t) = 5x*80 + 5x*c* (t-0) wher c is the heat capacity of water=1 cal/gm/ o c so x*240 =6xt t=40 o c 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",
"name": "",
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}
] |
|
d7f5843a8ae58cb660e56353ecab3f54 | an example of edible underground stem? | askiitians.com | 2021.31 | [
{
"text": "detailed description of edible plant stems asparagusthe edible portion is the rapidly emerging stems that arise from the crowns in the early spring.bamboothe edible portion is the young shoot (culm).birchtrunk sap is drunk as a tonic or rendered into birch syrup, vinegar, beer, soft drinks, and other foods.broccolithe edible portion is stem tissue, flower buds, and some small leaves.cauliflowerthe edible portion is proliferated stem and flower tissue.celerythe whole plant is edible including the crisp petiole (leaf stalk) and the fleshy taproot.cinnamonthe bark is used as a spice.figthe edible portion is stem tissue. the fig \"fruit\" is actually an inverted flower with both the male and female flower parts enclosed inside stem tissue.garlicthe edible portion is predominantly swollen leaves with a bit of stem.ginger rootthe edible portion is a branched underground compressed stem also referred to as a rhizome.kohlrabithe edible portion is an enlarged (swollen) stem. it is a member of the cabbage family and is white, green, or purple in color.leeksimilar to other members in the onion family, the edible portion is swollen leaves with a bit of stem.lotus rootthe edible portion is a stem modified for underwater growth. buds and branches are visible on the vegetable sold as lotus root.",
"name": "",
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}
] |
|
bbb947e413bea0d7ccdca85cc810f58c | que. no. 98 we have to find the minimum value of the expression | askiitians.com | 2021.21 | [
{
"text": "dear student please find attached",
"name": "",
"is_accepted": false
}
] |
|
a7010997a801da4b2ca5cc1b75fb69be | can anyone help me to solve this problem.thanks it is regarding the vectors.its my asaignment but i am not good in maths so if anybody willing to help me. | askiitians.com | 2021.31 | [
{
"text": "dear student please ask only one question per post 1 you have to take square of individual element and add them finally take the square root of the answer 2 to find unit vector you have to divide the vector by its magnitude regards",
"name": "",
"is_accepted": false
},
{
"text": "dear student here is the solution of q 7 a = 2i + j + k b = i – j + 2k a.b = 2-1+2 = 3 |a| = sqrt (6) |b| = sqrt(6) 3 = 6 cosq q = 60 degree",
"name": "",
"is_accepted": false
}
] |
|
c350a57d3065ce7a35539c13747dfb8d | why a footstep cant be used as a standered unit of length | askiitians.com | 2021.39 | [
{
"text": "the size of the foot varies from person to person. if footsteps of two persons are used to measure the length respectively, then the two distances may not be equal. thus, a footstep is not a constant quantity. hence, it cannot be used as a standard unit of length",
"name": "",
"is_accepted": false
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] |
|
c3af51edd69965a5949b445684b48290 | plz help !!!a charged particle is fired at an angle(say x) to a uniform magnetic field directed along x-axis.during its motion along a helical path,the particle will 1.never move parallel to the x axis. 2.move parallel to the x-axis once during every rotation for all values of 'x'. 3.move parallel to the x-axis at least once during every rotation if 'x'=45 degrees. 4.never move perpendicular to x- direction. one or more options may be correct. | askiitians.com | 2021.39 | [
{
"text": "answer : (a,d) solution : when the particle moves in a helical path, the plane of the helical path will be slightly inclined with x-axis. hence, options (a) and (d) are correct. the component of velocityvalong the direction ofbisvcosθ. since the trajectory will be helical, the trajectory will never be perpendicular to the direction of magnetic fieldb, it's trajectory will be inclined at a small angle to the direction of the magnetic field. it will also never move parallel tox−axis.",
"name": "",
"is_accepted": false
}
] |
|
2b2c13672a9da59ef1b4433a18d5b436 | if a,b,cd are positive real numbers such that a+b+c+d=2,then m=(a+b)(c+d) saties fies the relation a)0<m<=1 b)1<=m<=2 c)2<=m<=3 d)none of these | askiitians.com | 2021.39 | [
{
"text": "maybe the correct answer to this question is 5/9 <= m <=1 , (using am-gm inequalities).",
"name": "",
"is_accepted": false
}
] |
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