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5755a7e7f9a2f98c7972b95a39c4171c | hi i've scored 117 in enat (b.e.) and would like to know my approximate rank thanks in advance :) | askiitians.com | 2021.21 | [
{
"text": "hi , 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 askiitiians expert amit - it bhu",
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bb9e4706833457d95456c61189818d4a | please solve the question provided in the attachment. ............. ....... .... .. ............. | askiitians.com | 2021.25 | [
{
"text": "potential at a point outside the charged solid sphere = kq/r (r=distance from centre) take a full positive charged solid sphere of radius 2r. find out potential (v1) at point p take a full negative charged solid sphere of radius r . find potential (v2) at point p (v2 will be -ve) v(net)=v1+v2 btw is the answer 14 ρr²/9e e means epsilon knot",
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bd64c46ac5e8d91f53715ba9957b6f7b | sir i will be scoring 214 or 219 in aieee 2012. what may be my rank? which nits can i expect? nit warangal trichy surathkal allahabad bhopal..? i reside in madhya pradesh. plz guide me.. | askiitians.com | 2021.25 | [
{
"text": "as your marks are more than 50% so u will get rank around 5000 (less) . so getting admission in ur reqrd nit will be very easy",
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|
a5c578a2c11e447a43784911666e98cf | what is thermal conductivity? | askiitians.com | 2021.21 | [
{
"text": "thermal conductivity is the property of a material to conduct heat. it is evaluated primarily in terms of fouriers law for heat conduction",
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{
"text": "thermal conductivity is the property of a material to conduct heat. it is evaluated primarily in terms of fouriers law for heat conduction",
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{
"text": "the amount of heat per unit time per unit area that can be conducted through a plate of unit t hickness of a given material, the faces of the plate differing by one unit of temperature",
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050115f31eb0745e0fbeb26eaa7e24f7 | want to tell my opinion ……..and please recommend and advice me please……. i want to drop after class 10……..and i currently reading in resonance ..in class 11 program …….then after i will take admission after one year in class 11 …….then i take admission in class 12 either in resonance or allen institute for class 12 ……. then when i will in class 12 ……i prepared for ntse…olympiad ……kvpy……and after all i want to take admission in foreign institute……like mit …howard….and so many reputed collage ……,……and this is my dream of life ……. so please advise me and give me correct recommendation…….please……please | askiitians.com | 2021.43 | [
{
"text": "if i drop after class 10 .....then it makes any problem ...to appear in olympiad and kvpy........please",
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8b7ad6f229b1c5978528f5d36e474482 | (vii) 10/(x+y) + 2/(x-y) = 4 15/(x+y) – 5/(x-y) = -2 | askiitians.com | 2021.43 | [
{
"text": "solution: substituting 1/x+y = m and 1/x-y = n in the given equations, we get, 10m + 2n = 4 => 10m + 2n – 4 = 0 ………………..…..(i) 15m – 5n = -2 => 15m – 5n + 2 = 0 ……………………..(ii) using cross-multiplication method, we get, m/(4-20) = n/(-60-(20)) = 1/(-50 -30) m/-16 = n/-80 = 1/-80 m/-16 = 1/-80 and n/-80 = 1/-80 m = 1/5 and n = 1 m = 1/(x+y) = 1/5 x+y = 5 …………………………………………(iii) n = 1/(x-y) = 1 x-y = 1……………………………………………(iv) adding equation (iii) and (iv), we get 2x = 6 => x = 3 …….(v) putting the value of x = 3 in equation (3), we get y = 2 hence, x = 3 and y = 2",
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dab7066c1fbc6985359aa38bdf8c1d2d | i got 4000 rank in jee advanced, i intend to pursue cse in iit goa, is that a good option? | askiitians.com | 2021.31 | [
{
"text": "no with this rank you can get many better options . do not go for iit goa",
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6e6f979e0b7647d293a64da39441f2e4 | find the area of loop of curve xy^2+(x+a)^2(x+2a)=0 | askiitians.com | 2021.31 | [
{
"text": "dear student question is not clear please attach an image, we will happy to help you good luck cheers",
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9f129776ce696fc1c3d2a37ccb167063 | i have not received icar admit card.when it dispatched | askiitians.com | 2021.25 | [
{
"text": "i hope the query is resolved.",
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] |
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7d4a826ad65feb01c7c6fe5eb0114065 | please explain the mechanism and direction of force of friction in circular roads where vehicles move without banking | askiitians.com | 2021.31 | [
{
"text": "dear argha, when a vehicle goes round a curved road, it requires some centripetal force. while rounding the curve, the wheels of the vehicle have a tendency to leave the curved path and regain the straight line path. force of friction between wheels and the roads opposes this tendency of the wheels. this force of friction therefore, acts towards the centre of circular track and provides the necessary centripetal force. fig. (1) vehicle moving on level road in fig (1), it is shown that a vehicle of weight ‘mg’ (acts vertically downwards) is moving on a level curved road. r1 and r2 are the forces of normal reaction of the road on the wheels. these are vertically upward since road is leveled. hence, r1 + r2 = mg let f1 & f2 are forces of frictions between tyre and road directed towards centre of curved road. ∴ f1 = μ r1 and f2 = μ r2 where μ is coefficient of friction between tyres and road. if ‘v’ is the velocity of the vehicle while rounding the curve, the centripetal force required is mv²/r. as this force is provided by the force of friction therefore hence the maximum velocity with which a vehicle can go round a level curve; without skidding is banking of roads in the above discussion, we see that the maximum permissible velocity with which a vehicle can go round a level curved road depends on μ, the coefficient of friction between tyres and road. the value of μ decreases when road is wet or extra smooth or tyres of the vehicle are worn out. thus force of friction is not a reliable source for providing the required centripetal force to the vehicle. especially in hilly areas where the vehicle has to move constantly along the curved track, the maximum speed at which it can run will be very low. if any attempt is made to run it at a greater speed, the vehicle is likely to skid and go out of track. in order that the vehicle can go round the curved track at a reasonable speed without skidding, the sufficient centripetal force is managed for it by raising the outer edge of the track a little above the inner edge. it is called banking of the circular track or banking of roads . consider a vehicle of weight ‘mg’ moving round a curved path of radius ‘r’ with speed ‘v’ on a road banked through angle θ. if oa is banked road and ox is horizontal line, then ∠aox = θ is called angle of banking of road . refer fig (2) fig.(2) vehicle moving on banked road following forces are involved: the weight ‘mg’ acting vertically downwards the reaction ‘r’ of the ground to the vehicle acting along normal to the banked road oa in upward direction the vertical component r.cos θ of r will balance the weight of the vehicle. the horizontal component r.sin θ of r will provide necessary centripetal force to the vehicle. thus, r.cos θ = mg ….(1) and on dividing equation (1) & equation (2),we get 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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7469e99fa5a2617687e98d48ecd3a0a4 | can those ppl who had personal prbs on may 1 attend aieee on may 11????? | askiitians.com | 2021.31 | [
{
"text": "hi, i am afraid to say, that personal problems are not considered by cbse. only those, who had to appear for both aieee & aipmt 2011 , are allowed to take aieee exam on the 8th of may.",
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7c98234da22f18c5d7e3927348a0d39a | a compound forms hexagonal close packed structure. what is the total number of voids in 0.5 mol of it? how many of these are tetrahedral voids? | askiitians.com | 2021.21 | [
{
"text": "a compound forms hexagonal close packed structure.",
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8339d36ddd23af07a3fdf08ae49376fc | calculate the position of the planet of 10^5 kg which is placed between the planets of 10^20kg and 10^24 kg which are placed at 6000km apart hence it will get zero gravitational force | askiitians.com | 2021.21 | [
{
"text": "hiii the gravitation force acting between two bodies is given by f = g m1m2/d 2 so, let us assume the distance between 10^20 kg and 10^5 kg mass be d then distance between 10^24 kg and 10^5 kg mass wil be equal to 6000-d, apply gravitational force formula on both you will get the value of d .",
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cf687e5ba5f8af1d21487c3368e65a4a | the period of thin magnet is 4 sec. if it is divided into two equal halves then the time period of each part will be (a) 4 sec (b) 1 sec (c) 2 sec (d) 8 sec | askiitians.com | 2021.21 | [
{
"text": "as we discussed in concept physical pendulum - any rigid body suspended from a fixed support constitute a physical pendulum. - wherein e.g. a circular ring suspended on a nail in a wall etc. if it is divided into two equal halves the time period will be half t = 2sec",
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"text": "dear stduent please refer https://www.askiitians.com/iit-jee-magnetism/assignment-and-questions/ ////////////////",
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b5e41ceba835f8928b08bcbae50fe70f | i couldn`t get it.we use sign convention in deriving formulae.then why again we should use sign convention when solving numericals? | askiitians.com | 2021.39 | [
{
"text": "in the mirror and lens formula that we use, v,u and f is are not distances (of image, object and focus resp.)they are coordinateshence, in the derivation when you take distances, you have to take modulus of the coordinatesand in the formula, put coordinates",
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a0cfc16d34118b0a1e57829088337c65 | 4ab5 is a four digit number divisible by 55 where a, b are unknown digits. then b – a is : | askiitians.com | 2021.31 | [
{
"text": "hii it is very easy as he number given is a multiple of 11*5 so it must follow he divsibility rule of 11 and 5 use that and you will get the relation in a and b which will give you answer",
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"text": "55=5*11. we know in the no. 4ab5 last digit is 5 so its divisible by 5. its divisible by 11 also if its divisible by 11 then the sum of its odd and even terms must be divisible by 11. 4+b-(a+5)=a no. divisible by 11. b-a=(a no. divisible by 11 ) +1. now since b and a are single digit no. so 0 is the only no. which satisfies the equation. so the answer is 1.",
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fec8c3dac3e00d377b64a23fb310767a | which ml khanna book is better: iit mathematics or objective mathematics ? | askiitians.com | 2021.25 | [
{
"text": "@ nirm iit mathematics book is the better one for jee main as well as advanced . for objective question u can opt for objective mathematics by r d sharma otherwis etake last 37 years papers of jee by arihant publication . all the best ..",
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e1b8361456c5a179c7b876d761869cf8 | if n c 12 = n c 8 then what is the value of n? please answer this with brief explination. | askiitians.com | 2021.43 | [
{
"text": "dear student the formula for ‘n choose k’ is n!/(n-k)!k! therefore we have n!/(n-8)!8! = n!/(n-12)!12! (n-8)!8! = (n-12)!12! ….1 now there are 2 methods to proceed- guess and check and algebraic i will first present the guess and check method to make equation 1 true we must try to equate n-8 to 12 and n-12 to 8 now we have 2 equations n – 8 = 12 and n – 12 = 8 which give us n = 20 now the algebraic approach (n – 8)!8! = (n – 12)!12! (n – 8)! = (n – 12)! x 12 x 11 x 10 x 9 (n – 8)! / (n – 12)! = 12 x 11 x 10 x 9 on replacing n – 8 by p, we get p! / (p – 4)! = 12 x 11 x 10 x 9 p x (p-1) x (p-2) x (p-3) = 12 x 11 x 10 x 9 therefore p = 12 and n – 8 = p n – 8 = 12 hence n = 20 regards vedant",
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"text": "whenever you see the expression to be then either r = s or r + s = n here r = 12 and s = 8 clearly r is not equal to s so n = r + s implies n = 12 + 8 implies n = 20 (ans) hope it helps! p.s – this is the shortest method in which you can do these kinds of sums rather than breaking them into factorials on both sides.",
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"text": "whenever you see the expression to be then either r = s or r + s = n here r = 12 and s = 8 clearly r is not equal to s so n = r + s implies n = 12 + 8 implies n = 20 (ans)",
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9dfdec2f88866ae640cbc2e18c85e8dc | q. what are the main sources of carbon? | askiitians.com | 2021.31 | [
{
"text": "hello student, please find answer to your question below: carbon is a versatile element and found everywhere, but its main sources are air, water, fossil fuel, and rocks etc.",
"name": "",
"is_accepted": false
},
{
"text": "living form is the main source of carbon. all living forms on earth are made of carbon.",
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706ad0ed908c15b0e5418a17c8fcb553 | what are carbohydrates ???????? ???????????????????????? ???????????????????? ?????? | askiitians.com | 2021.39 | [
{
"text": "dear student carbohydratesare the sugars, starches and fibers found in fruits, grains, vegetables and milk products. though often maligned in trendy diets,carbohydrates— one of the basic food groups — are important to a healthy life",
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{
"text": "carbohydrates represent one of the three main classes of foods. carbs are a source of energy; they are mainly sugars and starches that the body breaks down into glucose that the body uses to feed its.",
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}
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76dc5399f55bef3f23739605bac6bcfd | add without using number line: (a) 11 + (–7) (b) (–13) + (+18) (c) (–10) + (+19) yhx,kyhk,tktlyu8l;8ypy | askiitians.com | 2021.25 | [
{
"text": "dear student (a) 11 + (-7) = 4 (b) (-13) + (+18) = 5 (c) (-10) + (+19) = 9 thanks",
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c83480b8d3ae37a9564ac32e98b96b47 | in general, liquids expand\_\_\_\_\_\_\_\_\_\_times than solids | askiitians.com | 2021.43 | [
{
"text": "in general , liquids expand slightly more than solids.",
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11999dd7f5dda4602f47b07e2e4f3b1e | if a2 sec 2 θ - b2 tan2 θ =c2 , prove that = ± √(c^2-a^2 )/√(c^2-b^2 ) | askiitians.com | 2021.43 | [
{
"text": "dear alok you have not provided the lhs of part which is to be proved. please check and respost it. regards arun (askiitians forum expert)",
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421549c3ff58dcf665e3116d2d17c5d9 | solve the following equations. t/5 = 10 solve the following equations. t/5 = 10 | askiitians.com | 2021.31 | [
{
"text": "dear student t/5=10 t = 10 × 5 t=50 thanks",
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6f2bbc111daf0c5ecb01955c3797e3f0 | in a year, seema earns ₹ 1,50,000 and saves ₹ 50,000. find the ratio of money that she saves to the money she spends. | askiitians.com | 2021.25 | [
{
"text": "dear student money earned by seema=₹150000 money saved by her =₹50000 money spent by her =₹150000 -₹50000 =₹100000 ratio of money saved to money spent = 50000 / 100000 = 5 / 10 = 1/2 thanks",
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93fe41096ae920ad12408db2392cf758 | i am in love why..? is there really hormones only responsible. then what about my feelings? | askiitians.com | 2021.25 | [
{
"text": "dear student lust is driven by the desire for sexual gratification. the evolutionary basis for this stems from our need to reproduce, a need shared among all living things. through reproduction, organisms pass on their genes, and thus contribute to the perpetuation of their species. the hypothalamus of the brain plays a big role in this, stimulating the production of the sex hormones testosterone and estrogen from the testes and ovaries . while these chemicals are often stereotyped as being “male” and “female,” respectively, both play a role in men and women. as it turns out, testosterone increases libido in just about everyone. the effects are less pronounced with estrogen, but some women report being more sexually motivated around the time they ovulate, when estrogen levels are highest.",
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f22b40823bc40f4d961411b19b7c5ac7 | 40. the mode of the numbers 2, 3, 4, 4. 3, 5, 3, 6 is \_\_\_\_\_\_ . | askiitians.com | 2021.43 | [
{
"text": "answer: explaination: 3",
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a5fb30e1ce7b5e8c5735e9590427d208 | my parents are bringing too much pressure on me though i am performing as usual. i feel to leave iit. | askiitians.com | 2021.31 | [
{
"text": "dear student, usually parents are worried abt your future and you have to be confident and dont loose hope. just focus on concepts and increase your study hours and make your parents feel proud by clearing jee with a good ran... 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 [email protected]",
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{
"text": "thankx",
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6ccc857dd6850994b2ea9e1551155c01 | what is the mrameanof the term cyclosis or cytoplasmic streaming? | askiitians.com | 2021.31 | [
{
"text": "it is circulation of protoplasm within the cell.the motion transports nutrients, proteins, and organelles withincells.",
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8a336b404d849184fffccbfb5f8d5067 | hi my sc cat rank in 72 please guide me which branch to select | askiitians.com | 2021.25 | [
{
"text": "you can easily get cse at good iits,so good with cse at iits like delhi, bombay, kanput, karagpur etc. sher mohammad faculty askiitans b.tech, iit delhi",
"name": "",
"is_accepted": false
},
{
"text": "i am confused between electical and computer science which one to choose first",
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},
{
"text": "cse is good.",
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}
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dde9258ed918058d9b8ed03489ccbbf7 | what rank should i have in aieee 2011 to get in dce(not from delhi) cs branch general category | askiitians.com | 2021.39 | [
{
"text": "dear student, you have to be in top 3000.....",
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9fc8929cc230f4b4b510882f3110a17c | can anyone tell me how many seats are there in bits? and upto what rank would i get cs in bits, pilani | askiitians.com | 2021.25 | [
{
"text": "candidates compete for a total of 2000 admission seats (800 in pilani campus, 600 in goa campus and 600 in hyderabad campus) thorugh bitsat every year. the cut off bit score for cs at pilani is arnd 350 whersas at goa campus cs its arnd 330 -- regards ramesh",
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185e404f0a4f9a1e48f869839b767913 | sir i m getting cs in ism for dual degree and cs in nit warangal . which is better option | askiitians.com | 2021.25 | [
{
"text": "go for cs at nit warangal followed by second option.. good luck.",
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},
{
"text": "dear aman, give priority to warangal and if you cna compare and contrast some more renowned institutions, then i may suggest you here to add these name too in your list – jjtu, rajasthan,............................banasthali university, banasthali,...........................lovely professional university, phagwara etc.",
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22e37ed1578cfe5fa3008622a8549efb | hello sir/mam iam st student i have scored 130 in 2010 iit.che 60 mat 68 phy 02.am i get seat in iit.please reply | askiitians.com | 2021.25 | [
{
"text": "hi , please click the link given below for the cut off: http://www.askiitians.com/iit-jee-2010-cut-offs.aspx and for opening and closing ranks .. please click here : http://www.askiitians.com/iits-2009-2010-opening-and-closing-rank.aspx all the best !! regards vijay luxmi",
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07b134e1d439568802b6e886ce73881f | a charged particle of mass m and change q is released form rest in an electric field of constant magnitude e .the kinetic energy of the particle after time t is | askiitians.com | 2021.25 | [
{
"text": "according to the question, force= q*e so acceleration is (q*e)/m after time t velocity is (q*e*t)/m so kinetic energy is 1/2*m*((q*e*t)/m)^2=1/2*((q*e*t)^2)/m thanks",
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a5f319d57a1b1b22845d5b7ce6d5693a | sir i have secured 137 rank in cusat , 3060 in uptu and 38513 in aieee i am not ble to decide what college to joint some are telling cusat will be better and some are saying to join uptu colleges such as jss noida, kamla nit, mmm college, akgec , kiet. sir plz tell what will be more appropriate | askiitians.com | 2021.25 | [
{
"text": "you should try to get an nit under your home state quota. best of luck.",
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{
"text": "sir i am a citizen of uttar pradesh and under its state quota there is only 1 nit and that to closes at 10000. so plz tell what college i should joint.................. i am thinking of cusat with electronics and communication sir plz tell whether it will be appropriate or not",
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bb77dafdc244de561e71faf51432c1dc | plz tel me which r d most scoring topics in jee???? | askiitians.com | 2021.39 | [
{
"text": "wht subjects if u lag in learn tht subjects, if any interval between preparations physics basics must be perfect",
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4296867ff8f69dfa8bc5e1946338001d | please send me method of extraction of tin from casseterite notes | askiitians.com | 2021.43 | [
{
"text": "he cassiterite is then mixed with approximately equal volumes of charcoal dust and a mixture of sodium and potassium carbonates (as a flux). the crucible used must have a lid to prevent atmospheric oxygen from forming excessive carbon dioxide. during smelting, the flux helps to remove impurities from the metal being formed. the overall reaction (upon heating) is: sno2 (s) + 2 c (s) --> sn (l) + 2 co (g) some write this as: sno2 (s) + c (s) --> sn (l) + co2 (g) the liquid tin is drained or poured into molds.",
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d82ad15b02b52d1b67e461185cd913ca | mathematics and computing at iit delhi vs aerospace at iit bombay.......????which is good ????which is having good placements | askiitians.com | 2021.25 | [
{
"text": "for placement statistics please visit respectively websites. both are good branches as well as colleges. i will suggest you to look for your interest. thanks",
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2c652914e2b3319e401dd4c9eb9f68ed | how do i improve my marks in physics???? i have not scored upto the mark in class test...i got 15 marks out of 80...i am giving jee in 2012...please help me out!!! suggest me the books or the hours i need to study physics!! | askiitians.com | 2021.31 | [
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"text": "dear student, physics plays a very crucial role in deciding the rank... you shud go thru dc pandey and hc verma to make your concepts pretty clear... 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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104ddca2ccc6d03c9f1e42447e9bb23d | dear sir i am interested in b tech chemical eng course and i am interested to do organic chemistry m tech. is it correct way or need youy advice that what is correct way to select couses.
pls advice.
thx | askiitians.com | 2021.31 | [
{
"text": "chemical engineering if pursued sincerely is highly profitable and the scope in india is huge. we are the top paid when compared with the pass outs of other branches and lately there has been a boom in this field and placements are sure. but first you should know what chemical engineering is because students have a misconception about it. a common fear that the work conditions of chemical engineers are hazardous is a fluke. chemical engineers work in safe environment and direct contact with chemicals is minimum. chemical engineers in india recruited in many sectors. some being : petroleum and petrochemicals, paper, fertilizers, rubber, pharmaceuticals, organic and inorganic industries etc. petroleum and the pharmaceutical sectors are booming and quite in demand. some of the major companies are listed below : in petroleum and gases reliance industries essar oils gujarat oils ongc bpcl fertilizers indo gulf fertilizers fertilizers and chemicals travancore ltd coromandel fertilizers some other companies being : bengal chemical and pharmaceuticals orissa drugs and chemical ltd indian drugs and pharmaceutical ltd (idpl) bihar drugs and organic chemical ltd naramada colours pvt ltd honeywell indian drugs and pharmaceuticals ltd aditya birla chemicals arati industries ltd l&t many students also get recruited to the it sector. a student desiring such option must additionally have knowledge of any of the computer languages. some of the companies being tcs, infosys, wipro, cts etc. but it is always best to go for core companies. the fact i understood is that one's profile should be good. every student undergoes internship during their course and for you to be outstanding and to get an upper hand in placements it is always better to do internship abroad during your engineering course . you can also go for higher studies to make your career firm. the undergraduates can take m.tech or ms in various fields and courses are offered in various iit's and nit's in india. the topics being : environmental engineering, piping and design, nanotechnology, metallurgy, chemical engineering etc. the students can also take up research options in their interested fields and earn while pursuing their course. you need to write gate to get into iit's and nit's. the companies these days consider gate score too for recruitment and therefore preparing for gate is very important. you can also do ms in india and abroad as well. the students can take up research options in their interested field and earn while pursuing their course. the basic criteria to do ms abroad is write graduate record examination (gre) and get a good score. next is english proficiency tests such as ielts, toefl etc. get atleast 6.5 out 9 to get admissions in college abroad. to do ms in us or uk is too high its not easy to extend your visa after your course. but you can also do post graduation cheaply but with more value . thanks & regards rinkoo gupta askiitiansfaculty",
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439c12ef4fe414695222f71cc3622a97 | sir do jee mains or the sate rank given by the state,count for admission in the nit of the state of residence? | askiitians.com | 2021.21 | [
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"text": "you can go to the homepage of askiitians.com . there you will find out the rank and college predictor which you can use for finding out the rank, the branch and college options available for you after filling out your marks or rank and other credentials. ------------------------------x--------------------------",
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58825d207b8dc60548468b84f9e38b7f | why is a whiptail lizard referred to as parthogenetic? | askiitians.com | 2021.39 | [
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"text": "whiptail lizard is parthenogenetic because , an unfertilized egg develops into a new individual. this process of reproduction without fertilization is called parthenogenesis.",
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4783166a9d3c9edf90f622387544f46d | sir, how can i predict whether a reaction will undergo an sn2 mechanism or e2 mechanism? | askiitians.com | 2021.31 | [
{
"text": "hi, the e2 mechanism is analogous to the sn2 . and both competes . usually in most of the cases we get both the substituition as well as elimination product . the ratio of e : s varies , which depends upon certain factors normally all nuclephiles are base . but when we have good nucleophiles sn2 is favoured . &when we have strong bases e2 is favoured. it also depends upon how acidic the h , which is attatched to the adjacent c , is. if it is more acidic than obviously we will get a favoured ellimination product.",
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9f3487327e1ed814e5376f23d8f58b0e | suppose a vertical plane mirror and a object which is placed at a distance of 4 m from the mirror. if we start moving the mirror with a velocity of 2m/s and also start moving the object at 3m/s. then how should i can find the velocity at which the image moves and also the direction of motion of the image? | askiitians.com | 2021.39 | [
{
"text": "what is the direction of motion of the mirror and object? are they moving towards each other.? in general when the mirror is moving with velocity v towards stationary object, the image moves with velocity 2v towards it. direction can be found out by a simple logic, if the object is moving towards the mirror then image also moves towards mirror and vise versa",
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"text": "both the mirror and the object are moving in the same direction.",
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011ee62e3afdc2cbadf7852d545d4440 | the focal length of converging lens is measured for violet, green and red colours. it is respectively f v , f g , f r , we will get (a) f v = fg (b) f g > f r (c) f v < f r (d) f v > f r | askiitians.com | 2021.21 | [
{
"text": "(c) according to cauchy relation .''. red light has wavelength greater than violet light. therefore focal length of lens for red is greater than for violet. (f r > f v )",
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"text": "fv>fg bcz f is inversely proportional to lemda we know wavelength of red is max ..............................................",
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f3f0059acc20735049849c402b6e2be1 | kinetic energy of a body decreases by 19%. what is the percentage decrease in linear momentum? (a) 15% (b) 5% (c) 20% (d) 10% | askiitians.com | 2021.25 | [
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"text": "simply answer is 10%",
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abd519f8eeb73ccf216db0756c662503 | sir i got 80 marks in jee mains 2014.i got 98.16%in kerala hse examination. what would be my rank? is there any chance to get admission in nits through general category? | askiitians.com | 2021.39 | [
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"text": "you can predict your rank in jee mains with the help of the following provided links. compare your rank with previous year cut-off of various institutes. this will give you an idea of the various branches in different institutes open for you. 1.http://blog.askiitians.com/calculation-percentile-normalization-marks-composite-score/ 2.http://www.askiitians.com/iit-jee/main/rank-predictor.html thanks and regards apoorva arora iit roorkee askiitians faculty",
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7be30479b97cc805c7e7088c28e1faa4 | i would like to know about nit calicut - branch production enginnering , is there good scope for production eng | askiitians.com | 2021.21 | [
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"text": "dear bala, nit calicut is among the best collehes in india. and production engineering is a good branch. 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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a8d872be02e53ad44facffc1257a56ee | what i can do what i have to just waiting for a chance how much amout needed live in risod - washim - maharshtra | askiitians.com | 2021.31 | [
{
"text": "dear yash, the initial investmen for setting up new business depends on many factoors such as type of business, scale of business, etc, etc cracking iit just got more exciting,it s not just all about getting assistance from iitians, alongside target achievement and rewards play an important role. askiitians has it all for you, wherein you get assistance only from iitians for your preparation and win by answering queries in the discussion forums. http://www.askiitians.com/packages/packages.aspx so start the brain storming…. become a leader with elite expert league askiitians thanks aman bansal askiitian expert",
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6db2e39634c437c2b6346d1db08f0e90 | two convex lenses with focal length f are kept apart from each other at a distance of 3f. what will be the object distance so that the image formed by the lenses are real? | askiitians.com | 2021.31 | [
{
"text": "central length = f cm picture distance = v cm from the lens recipe, 1/v-1/u = 1/f 1/u = (f-v)/fv u = fv/(f-v) as v = 3f u = 3f2/(- 2f) u = - 3f/2",
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c813613874b8c566754e9ec15de86f8d | in sterioisomerism there is ma 2 xy type, in that a is neutral ligand and x,yare anionic ligand. eg for this is [ptnh 3 cl(py) 2 ]. ---------- in this eg according to the rule there is one neutral ligand and two anionic ligand, but nh 3 , (py) 2 are neutral ligand and only one anionic ligand that is cl. then can u pls explain how this eg being apt for this kind of sterio isomerism. can u give another eg for this????? pls give the ans immediately....... | askiitians.com | 2021.25 | [
{
"text": "its not a necessary condition that they need to be anions. so yes they will show stereoisomerism of this type.",
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75ffcfd1a6501da1bbdc66010a5d72d5 | sir..i got barch all india rank-35478 and obc category rank- 8556, state(tamilnadu) rank- 1392 and obc category rank- 724.. wil i get barch in any good college??? please reply thanks. | askiitians.com | 2021.31 | [
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"text": "hi , for the last year cut off in architecture, please click the link : www.askiitians.com/aieee-counselling/architecture-counselling.aspx thanks and all the best !!!!",
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687346083056ba32e565e4e6a06ef01e | how does angle of incidence vary with angle of deviation? | askiitians.com | 2021.39 | [
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"text": "the formula that you gave, namely (1) ..... n = { sin[(a + d)/2] }/sin(a/2) is true only for the angle of incidence θ that gives an angle of refraction α such that α = a/2 , so that the light ray passes symmetricall through the glass prism. in that case (when the light ray passes symmetricall through the prism), (1) holds true and the angle d in (1) is called the angle of minimum deviation. perhaps it would be better to denote this angle by dmin in order not to confuse it with the general angle of deviation d which is not equal to dmin. in that case, we can rewrite (1) as (2) ..... n = { sin[(a + dmin)/2] }/sin(a/2) for a given glass prism with a particular value of the index of refraction n and a specific value of the prism angle a, there is only one minimum angle of deviation dmin. that is why n in (2) is a constant. but the general angle of deviation d is in general different from the minimum angle of deviation dmin. that occurs when the angle of incidence θ makes the light ray pass through the prism unsymmetrically so that the angle of refraction α is no longer equal to a/2. and that is also the angle referred to (not dmin) in yourphysics book, the angle of deviation d that first decreases until it reaches a minimum value (that is now dmin) and then starts increasing afterwards, when the angle of incidence is increased first from a small value. now, if you want to understand why the angle of deviation d (not dmin) first decreases and then increases only later, that has something to do with the double refraction encountered by light in passing through the glass prism. the first refraction (from air to glass) is from a lighter to a denser medium, n1 < n2 , so that θ1 > θ2 in the law of refraction, and light is bent towards the normal, away from the initial direction of incident light. but as`θ1 increases, θ2 also increases, and that brings the refracted light towards the initial direction of the incident light. the second refraction (from glass back to air) is from a denser to a lighter medium, n1 > n2 , so that θ1 < θ2 in the law of refraction, and light is bent away from the normal, also away from the initial direction of incident light. as`θ1 increases, θ2 also increases, and that brings the refracted light farther away from the initial direction of the incident light. starting from a small value of angle of incidence, the change towards the initial direction of the incident light in the first refraction is greater than the change farther away from the initial direction of the incident light in the second refraction, so that theangle of deviation d decreases at first. but after reaching d = dmin, the change towards the initial direction of the incident light in the first refraction becomes smaller than the change farther away from the initial direction of the incident light in the second refraction, so that the angle of deviation d finally increases.",
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c47ac61a3a6329a960dcf24cd1545a3b | by what the speed of a moving body is presented graphically? a simple pendulum takes 32s to complete 20 oscillations. what is the time period of the pendulum a car moves with a speed of 40km/h for 15min and then with a speed of 60km/h for the next 15mins. what is the total distance covered by the car what is the difference between non-uniform motion and uniform motion | askiitians.com | 2021.31 | [
{
"text": "time taken to complete 20 oscillations = 32s time taken to complete one oscillations = ? time period = time taken/ no of oscillations = 32/20 = 1.6s ans = 1.6",
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04ce4063af689f9b37eb5b297412ee16 | a graph is plotted between displacement vs time then find the impulse for the each cycle | askiitians.com | 2021.43 | [
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"text": "dear student there is no graph attached. please check and repost it. i wil be happy to help you. regards arun",
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"text": "dear student there is no graph attached. please check and repost it. i wil be happy to help you. regards ekaaant",
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07bdefc8b0034ec720d5ee8e4f477754 | why 7/8 is taken in the formula for calculating magnetic length i.,e 2l=(7/8)×geometric length? | askiitians.com | 2021.39 | [
{
"text": "dear student generally 5/6 is used. please check and repost it. regards arun (askiitians forum expert)",
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f4f438120cfc5775c93381beb797b89b | in ∆oab, e is the mid point of ab and f is a point on oa such that of=2fa.if c is the point of intersection of oe and bf, then find the ratios oc:ce and bc:cf are | askiitians.com | 2021.25 | [
{
"text": "p = 0.5λ b + a /(λ +1) p = yod y/3 = 1/(λ+1) λ/(2(λ+1) = 2/3 y 0.5λ (1/(λ+1) ) = 2/3 * 3/(λ+1) λ = 4 y = 3/5 op = 3/5 od",
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ef884d08e4abf82a09222e9158267d42 | 1. the concept of grouping elements into triads was given by ……… . 2. mendeleev’s basis for the periodic table is ……… . 3. the basis for modern periodic table is ……… . 4. (a) metallic character ……… down the group. (b) atomic size ……… along the period. (c) electronegative character ……… down the group. 5. isotopes belong to the same ……… in the periodic table. 6. halogens belong to group ……… of the periodic table. 7. an element having electronic configuration (2, 8, 2) belongs to the ……… group. 8. atoms of different elements with the same number of occupied shells are placed in the same ……… . 9. valency of elements ……… and then ……… as we move across the period while it remains the same down the group. 10. non-metals are located on the ……… side of the periodic table. | askiitians.com | 2021.39 | [
{
"text": "1. dobereiner 2. atomic mass 3. atomic no. 4. (a) increases (b) decreases (c) decreases 5. position 6. 17 7. 12th 8. period 9. increases, decreases 10. right",
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2f2e947ad635428a9a07d8ab3c447b15 | the catalytic decomposition of n 2 o by gold at 900 0 c and at an initial pressure of 200mm is 50% complete in 53 minute and 73% complete in 100 minutes. what is the order of reaction. i know its first order reaction. but how can we calculate . it may also second order. plz explain. | askiitians.com | 2021.31 | [
{
"text": "calculate k for both the observations and then if k is same for both the exp acc to first order then it will be first order. orelse calsulate it with other equations for k and find out the order",
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7873401f1fe0c34ad9b2dfc6c7eca8e6 | hi, i am agarwal and i want to join the online test series. is it free at your website or i have to pay for it?? plz reply asap. | askiitians.com | 2021.31 | [
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"text": "hi, there is free online test for students. if you are askiitians registered user then you can find the the best solutions and papers with your packages.",
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7977765664241529ddbbd863e97608b4 | no of solutions of (6-x)^4 +(8-x)^4=32 | askiitians.com | 2021.39 | [
{
"text": "hello student, please find the answer to your question below given (6-x)^4 +(8-x)^4=32........(1) let y am of 6-x and 8-x =7-x so eqn(1) becomes (y+1) 4 +(y-1) 4 =32 on simplifying we get y 4 +6y 2 -15=0 let y 2 =u we get u 2 +6u-15=0 we get u=-3 2 so y=i ,-i ,- , so x=7+ ,7- ,7+ ,7- hence there are 4 solutions",
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b47c9226cd97c079d1da8911c063162d | sir, i need to get into philani bits how can i prepare? | askiitians.com | 2021.21 | [
{
"text": "dear student, first of all you should be aware about the syllabus, pattern for bitsat-2016. seciondly you should also go through its previous year’s paper to know about its level. try to work on your weak areas/subject. and solve more number of questions to clear your conceptual knowledge. thanks.",
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aba8dc89bc78bf926ff0e1302b6cddf6 | protective resemblance of animal• with their environment and background •• ( 1) batesian (2 } mimesis (3} mullerian mimicry (4) mimicry. | askiitians.com | 2021.39 | [
{
"text": "ans. (4). best whishes.",
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7f04d5f3270b9b79040b797e6ca5c821 | respected, i hope my the image is clear to you and i will get the solution soon. thank you. | askiitians.com | 2021.39 | [
{
"text": "dear,student the answer to this question must be (b). please approve to get detailed solution to this problem.",
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"text": "dear student -1/xy + logy = c ydx +xdy + x^2ydy =0 dxy/x^2y^2 + 1/y dy = 0 -1/xy + log y =c ans will be option b",
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c6a7f234110a491611d69469a7b8af20 | do you know of any activity which may be polluting this water source? | askiitians.com | 2021.31 | [
{
"text": "dear student yes, the water is polluted by (a) sewage (b) dumping waste in river, (c) factory waste etc. thanks",
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c13fc036e8f3e58abf1e79ef371616f4 | most scoring topics for mathematics in iit jee - aieee ? | askiitians.com | 2021.31 | [
{
"text": "i think most scoring topics in mathematics are vectors , trigonometry , co-ordinate geometry- straight lines, circle, parabola, ellipse, hyperbola | 3 d - straight line in space, plane.",
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"text": "the following sub topics have high probability of appearing in the exam. :2d geametry – locus problems on circles/straight lines, 2d geometry – conic sections:parabola, ellipse, 3d geometry – straight line in symmetric form, vectors – vector product, algebra – complex numbers:geometry, algebra – binomial theoram:binomial coeff, trigonometry – properties of triangle, trigonometry – inverse trigonometric functions, differential calculus – applications of derivatives montonicity, integral calculus – differential equations evalution",
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863745d2b9f1e955067d673230bf3958 | if (1/ab)+(1/bc)+(1/ac)=1 and a+b+c=1 find value of (1/(1+a+ab))+(1+(1+b+bc))+(1+(1+c+ac)) | askiitians.com | 2021.39 | [
{
"text": "given that 1/ab+1/bc+1/ca =1 and a+b+c=1.1/ab+1/bc+1/ca=1=>(a+b+c)/abc =1 abc=1=>bc=1/a,c=1/ab,ac=1/b.(1/1+a+ab)+(1/1+b+bc)+(1/1+c+ac)=(1/1+a+ab)+(1/1+b+1/a)+(1/1+1/ab+1/b)=(1/1+a+ab)+(a/1+a+ab)+(ab/1+a+ab)=(1+a+ab)/(1+a+ab)=1",
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3065570bf84b93a57bc0f8831817a444 | which gases are released from petroleum refineries ? | askiitians.com | 2021.25 | [
{
"text": "sulphur dioxide and nitrogen dioxide.",
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62538530435d8c08c09789cc19094e2f | 20 cm3 of h2so4 solution neutralizes 21.55cm3 of naoh solution with c = 0.1m. how many cm3 of water should be added to 980cm3 of acid solution so that the concentration of the solution becomes 0.05m. | askiitians.com | 2021.31 | [
{
"text": "dear student question is not clear please attach an image, we will happy to help you good luck cheers",
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1b702aa23928a8425ed72d117d32c09f | how to solve {y^2 - (3/24)^2} {y^2-(1/24)^2} = 5/864? | askiitians.com | 2021.31 | [
{
"text": "write, {y^2 - (3/24)^2} {y^2-(1/24)^2} as => {y^2 - (1/24)^2 – 8/(24)^2} {y^2-(1/24)^2} = 5/864 let {y^2 - (1/24)^2} = xthen,(x -8/(24)^2) x = 5/864now solve this quadratic in x and then equate it to general y form.",
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8f470cd77cf7a7cf84f542d85271186f | two shm are given by y1 =40sinwt and y2=10(sinwt+c.coswt). if their displacement are equal , then the value of c is | askiitians.com | 2021.31 | [
{
"text": "y 2 = 10(sinwt + c.coswt) divide & multiply by (1+c 2 ) 1/2 y 2 =10(1+c 2 ) 1/2 [ sinwt(1/1+c 2 ) 1/2 + (c 2 /1+c 2 ) 1/2 coswt ] now put (1/1+c 2 ) 1/2 = cos@ then (c 2 /1+c 2 ) 1/2 = sin@ now y 2 becomes y 2 = 10(1+c 2 ) 1/2 [ sinwtcos@ + coswtsin@] y 2 = 10(1+c 2 ) 1/2 [sin(wt+@)] y 1 = 40sinwt for same displacement , amplitude must be same so 40 = 10(1+c 2 ) 1/2 c = 15 1/2",
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f90439a3b9fc1695a599a9a075405317 | during a thermodynamic process, the pressure p of a diatomic gas depends on its volume v as p ∝ v^-4 . the specific heat of gas during this process 12r 13r/6 17r/5 11r/2 | askiitians.com | 2021.39 | [
{
"text": "this is the case of polytropic process and therefore, c is given as: c = r/(y -1) + r/(1-x) where y = cp/cv. where x = 4 given. cp =( f/2+1)*r cv = fr/2 f = 5 for diaatomic gas that is degree of freedom.",
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96a8a63f51544e1e1968c2589da5840c | what is total internal reflection ........................ | askiitians.com | 2021.43 | [
{
"text": "no light pases into the rarer medium but the entire light is reflected back into the denser medium . this is called tir",
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"text": "when a light ray is traveling from denser medium to rarer medium and made to incident on the separation between two media at an angle greater than critical angle of the medium then the light ray is reflected back into the same denser medium...this is called tir... conditions.... light ray must travel from denser medium to rarer medium... angle of incidence in the denser medium must be greater than critical angle of the medium....",
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"text": "total internal reflection, in physics, complete reflection of a ray of light within a medium such as water or glass from the surrounding surfaces back into the medium. the phenomenon occurs if the angle of incidence is greater than a certain limiting angle, called the critical angle",
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"text": "use scholr app for solving your doubts. total internal reflection , in physics, complete reflection of a ray of light within a medium such as water or glass from the surrounding surfaces back into the medium. the phenomenon occurs if the angle of incidence is greater than a certain limiting angle, called the critical angle. in general, total internal reflection takes place at the boundary between two transparent media when a ray of light in a medium of higher index of refraction approaches the other medium at an angle of incidence greater than the critical angle. for a water-air surface the critical angle is 48.5°. because indices of refraction depend on wavelength, the critical angle (and hence the angle of total internal reflection) will vary slightly with wavelength and, therefore, with colour. at all angles less than the critical angle, both refraction and reflection occur in varying proportions.",
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7f1f2c1c504700f4e5fc3279b1dfb7b7 | limit x tening to 0 [1^(1/sin^2(x))+2^(1/sin^2(x))+.......... +n^(1/sin^2(x))]^sin^2(x) | askiitians.com | 2021.43 | [
{
"text": "lim x tends to 0 it is in the form of a m + b m= ab m and then (a m)n = (ab )m then u will get n factorail as answer.",
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|
d9ce790554e07156ea01866b86573575 | q. in how many groups, plants disease are classified? | askiitians.com | 2021.25 | [
{
"text": "hello student the plant disease are classified into four groups 1. seed borm disease 2.soil born disease 3. air born disease. 4. disease tranmitted through the diseased part of the plant",
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531459b480c9cc6c074a43013b5d8072 | but in my physics tb it is given that it is not (-)tive | askiitians.com | 2021.39 | [
{
"text": "dear student, the first equation comes as a result of conservation of momentum. this results when the initial total momentum is equal to zero and there is no net force acting on the system. the second equation comes when the resultant vector is found in a vectorial notaion. regards sumit",
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4a24e5a516327d4fc0d3015eddde701b | find the midpoint of the chord intercepted on the line lx+my+n=0 by circle x2+y2=a2 | askiitians.com | 2021.25 | [
{
"text": "dear student simplify eqn of circle as x= ± (a^2 – y^2)^0.5 put the 2 values in eqn of line and find y and eventually x two points thus obtained can be averaged for themidpoint of the chord regards",
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|
5503e2a311b47178e0c66dac8121a243 | capacitance (in f) of a spherical conductor with radius 1 m is (a) 1.1 x 10 -10 (b) 10 -6 (c) 9x 10 -9 (d) 10 -3 | askiitians.com | 2021.21 | [
{
"text": "(a) for an isolated sphere, the\ncapacitance is given by c = 4 p ? 0 r = 1/ 9x 10 9 x 1 = 1.1 x 10 -10 f",
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5eb2799e5e2b78e845e3256e8b864c3d | 57. when bulbs are connected in series, the lower power bulb glows brighter. [true/false] | askiitians.com | 2021.31 | [
{
"text": "answer: explanation: true",
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|
2def63051eaca80b3c276f851561b8f4 | sin50-sin70+sin10= | askiitians.com | 2021.21 | [
{
"text": "2.cos(50+70)/2 * sin(50-70)/2 + sin10 (use sin a – sin b = 2 cos (a+b)/2 * sin (a-b)/2 2.cos60 sin(-10) + sin10 2*1/2 * (-sin10) + sin10 -sin10 + sin10 = 0",
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529992c29d1547173d7a956c8594bb89 | can u explain theory of equation | askiitians.com | 2021.43 | [
{
"text": "it is not possible for us to explain the whole topic/chapter here. please go through the study material and write down the specific problem. thanks & regards latika leekha askiitians faculty",
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0e918ea94daac22f709a8f162ffb1dee | do quasiperfect numbers exist? | askiitians.com | 2021.31 | [
{
"text": "hello student, a natural number n is called a quasiperfect number if the sum of its proper divisors is n+1 . like odd perfect numbers, no one knows whether a quasiperfect number exists. thanks and regards shaik aasif askiitians faculty",
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|
8a5f59209afb347aeea9ca1e83b8645d | at 25°c, the solubility product of a salt of mx2 type is 3.2 × 10–8 in water. the solubility (in moles/lit) of mx2 in water at the same temperature will be (a) 1.2 × 10–3 (b) 2 × 10–3 (c) 3.2 × 10–3 (d) 1.75 × 10–3 | askiitians.com | 2021.21 | [
{
"text": "dear student the answer is option b regards",
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|
5ed2951924787f102368c28d74d3cc12 | how many natural numbers not exceeding 4321can be formed with the digits 1,2,3,4 if the digits can repeat? | askiitians.com | 2021.39 | [
{
"text": "the answer is 4 4 .",
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},
{
"text": "anyway, there are 4 one digit numbers (obvious) 16 two digit numbers (there are 4 options for each digit, and two digit numbers are automatically <= 4321) 64 three digit numbers (again, 4 options for each digit) now for the four digit numbers: there are 64 numbers where the first digit is a 3 (4 options for each of the remaining digits, and since the first digit is a 3, the number is < 4321) similarly there are 64 numbers where the first digit is a 2, and another 64 where the first digit is a 1. this is 192 four digit numbers so long. now lets look at what happens if the first digit is a 4. there are 16 numbers where the second digit is a 2 (the last two digits can be anything in this case) and another 16 where the second digit is a 1. if the second digit is a 3: ...if the third digit is a 1, there are 4 numbers, because there are no restrictions on the last digit. ...if the third digit is a 2, there is only one possible number, n.l. 4321. so, there are 16 numbers if the second digit is a 2, 16 numbers if the second digit is a 1, and 4 + 1 = 5 numbers if the second digit is a 3, giving 16 + 16 + 5 = 37 four digit numbers where the first digit is a 4. in total, we have 4 one digit numbers 16 two digit numbers 64 three digit numbers 192 four digit numbers where the first digit is not a 4 37 four digit numbers where the first digit is a 4 this is 313 numbers in total.",
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},
{
"text": "answer is 4 raise to power 4.",
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{
"text": "no. has to be less than 4321 so, consider no. s less than 4000 1 st place:3 ways 2 nd place:4 ways 3 rd palce:4 ways 4 th place:4 ways therefore, 3*4*4*4=192 now consider no.s starting with 4 2 nd place can be filled in 2 ways (1&2) as no. has to be less than 4321 1 st place:1 way 2 nd place:2 ways 3 rd palce:4 ways 4 th place:4 ways therefore,1*2*4*4=32 now consider no.s starting with 4 and followed by 3 case 1: 432\\_ → 1 way case 2:431\\_ → 4 ways therfore , 1+4= 5 ways so , total no. of numbers formed= 192+32+5=229",
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{
"text": "anweres is when first two digits are fixed that is 4,4 now when two are fixed from satrting that is 4,3=16+8+3=27total ways =340sono.`s less than 4321=340-27=319",
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{
"text": "total no. of ways = 4*4*4*4+4*4*4+4*4+4=340no.`sgreater than 4321fixing first two no.`s i.e.,4,4,\\_,\\_no. of ways ,n1=4*4=16fixing first two no`s i.e.,4,3,\\_,\\_no.of ways,n2 =2*4=8fixing first three no.`s i.e.,4,3,2,\\_no.of ways,n3=3now no.`ss less than 4321are=t-(n1+n2+n3)=340-27=313",
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{
"text": "dear student, please find below the solution to your problem. there are 4 one digit numbers (obvious) 16 two digit numbers (there are 4 options for each digit, and two digit numbers are automatically <= 4321) 64 three digit numbers (again, 4 options for each digit) now for the four digit numbers: consider no. s less than 4000 1stplace:3 ways 2ndplace:4 ways 3rdpalce:4 ways 4thplace:4 ways therefore, 3*4*4*4=192 now consider no.s starting with 4 2ndplace can be filled in 2 ways (1&2) as no. has to be less than 4321 1stplace:1 way 2nd place:2 ways 3rdpalce:4 ways 4thplace:4 ways therefore,1*2*4*4=32 now consider no.s starting with 4 and followed by 3 case 1: 432\\_ → 1 way case 2:431\\_ → 4 ways therfore , 1+4= 5 ways so , total no. of 4 digit numbers formed = 192+32+5=229 hence total number = 4+16+64+229 = 313 thanks and regards",
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|
0f9121f5380c5e993400058a0da854a1 | i can get iiit-allahabad ece. should i go for it or take nit-nagpur ece or nit-rourkela ece or nit-nagpur mech or nit-rourkela\_mech? pl rate these. the first batch of iiit-allahabad is coming out this year. pls tell me i am really confused? | askiitians.com | 2021.39 | [
{
"text": "dear sarath, your preffered options shud be like: 1. ece@ nit nagpur 2. ece@iiit allahabad 3 mech @ nagpur 4 nit rourkela all the best for your future. check out the opening and closing rank for collages under aieee: http://www.askiitians.com/aieee-counselling/aieee-engineering-counsellings.aspx 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. now you can win exciting gifts by answering the questions on discussion forum. so help discuss any query on askiitians forum and become an elite expert league askiitian. regards vijay luxmi",
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|
602add4fe699e25506ca4b1b618125dd | if we increase the length of resonance tube by 100 times, what will b its effect on the frequency of sound heard by the observer? | askiitians.com | 2021.43 | [
{
"text": "frequency is inversely proportional to length",
"name": "",
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},
{
"text": "if you need further help, feel free to reach me on my gmail : amit1235813 i am an iit madras alumnus, would love to help",
"name": "",
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{
"text": "thnk u so much ...... sure ,.....",
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04bc7a51c197bd6e307e79769f3a2edf | please answer the attached question... . .. . . . .. . | askiitians.com | 2021.25 | [
{
"text": "hello dear parth verma xanthium also called coclebur is the odd one because xanthium is a short day plant but all others like sugarbeet,carrot,and cabbage are lond day plants thank you",
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|
a50511ab175a7331420f578a29f88e07 | find the value of each of the followinglim e^-x-e^x÷x-1. approach to 1 | askiitians.com | 2021.43 | [
{
"text": "please use brackets and write question properly.",
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}
] |
|
93ff2b5112c378a3d1127270d81cc5da | getting cs at dce and nsit (dce near my home) and ism dhanbaadf petroleum what is there to study in petroleum what should i prefer | askiitians.com | 2021.25 | [
{
"text": "dear dheeraj prefer your branch rather than college. 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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f747a0798c61b542d29c25daf8f0b72b | an infant feeds only on mother’s milk.but also his faeces are yellow in colour.why? | askiitians.com | 2021.31 | [
{
"text": "it’s due to the bile that get mixed with it in duodenum...................................................................................",
"name": "",
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},
{
"text": "hi anna, dear, you are right that an infant feeds only on mother’s milk .but also his faeces aer yellow in colour . it os due to release of bile pigments during digestion",
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}
] |
|
9bef34b3ddbefb2c9c9d596d99b57ff4 | find the number of solutions of the equation: [x]+[2x]+[4x]+[8x]+[16x]+[32x]=12345 where [.] denotes the greatest integer function. | askiitians.com | 2021.25 | [
{
"text": "dear rishabh , let x = i + f where i is the integer part or integral part and f the fractional part of x. we have f < 1, and [x] + [2x] + [4x] + [8x] + [16x] + [32x] = 63i + [f] + [2f] + [4f] + [8f] + [16f] + [32f] since f < 1, [f] = 0, and we now have 63i + [f] + [2f] + [4f] + [8f] + [16f] + [32f] = 63i + [2f] + [4f] + [8f] + [16f] + [32f] = 12345 = 63 × 195 + 60 so i = 195, and [2f] + [4f] + [8f] + [16f] + [32f] = 60 (*) since max[nf] = n - 1, the maximum value of [2f] + [4f] + [8f] + [16f] + [32f] = 1 + 3 + 7 + 15 + 31 = 57. therefore, equation (*) is not possible, and there is no f that can satisfy the equation in the problem, and thus there is no x. 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 ajit singh verma iitd",
"name": "",
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{
"text": "let f(x) = [x] + [2x] + [4x] + [8x] + [16x] + [32x]. obviously f is an increasing function (if x < y, then f(x) <= f(y).). f(196) = 12348. but if x is just under 196, then [x], [2x], [4x], [8x], [16x] and [32x] are all smaller by at least 1, so f(x) < 12342. hence f never takes the value 12345.",
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|
2dd85e6a09660a52c9d21cae6ef7f81e | anna university, chennai is giving any seats basedon iit jee 2010 ranks. if so pl give details. may i get seat in any iit with 7000 rank under general category. if so which iit and which branch. | askiitians.com | 2021.21 | [
{
"text": "yes you can get int iit,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,",
"name": "",
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}
] |
|
992e335ea2673e6807b37d91e2cf7f11 | how does miller’s experiment support biogenesis theory? | askiitians.com | 2021.21 | [
{
"text": "in 1953, urey and miller conducted an experiment to prove this theory. they created the conditions of primeval earth − high temperature, volcanic storms, reducing atmosphere containing ch 4 , nh 3 , etc at laboratory scale. they then stimulated electric discharge in a closed flask containing ch 4 , h 2 , nh 3 and water vapour at 8000°c. they observed formation of amino acids. in similar experiments others observed, formation of sugars, nitrogen bases, pigment and fats. these small organic molecules are the building blocks for proteins & other components. hence, this experiment supported that life has come from pre-existing non-living organic molecules.",
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|
621669633948fb0d3bc19baefb00af32 | what are the differences between dimond and graphite?give it | askiitians.com | 2021.43 | [
{
"text": "hii i am enlisting the basic difference between diamond and graphite . *diamond is the hardest mineral known to man, graphite is one of the softest. * diamond is an excellent electrical insulator, graphite is a good conductor of electricity. * diamond is the ultimate abrasive, graphite is a very good lubricant. * diamond is usually transparent, graphite is opaque. * diamond crystallizes in the isometric system and graphite crystallizes in the hexagonal system.",
"name": "",
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},
{
"text": "graphite is soft and good conductor of electricity.but diamond is hard and bad conductor of electricity. both are allotropes of carbon. both diamond and graphite are made entirely out of carbon, as is the more recently discovered buckminsterfullerene (a discrete soccer-ball-shaped molecule containing carbon 60 atoms). the way the carbon atoms are arranged in space, however, is different for the three materials, making them allotropes of carbon.",
"name": "",
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{
"text": "would be that since diamonds have a three dimensional network of strong covalent bonds, which makes it hard, but graphite on the other hand has flat layers of carbon atoms held by weak van der waal's forces which makes graphite a weak object and easily breakable ( what is the differences in physical",
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] |
|
a3dc2f69ae11dfad347e085ee6f4acdd | what was the most significant trend in the evolution of modern man (homo sapiens) from his ancestors? 1. increasing brain capacity 2. upright posture 3. shortening of jaws 4. binocular vision | askiitians.com | 2021.39 | [
{
"text": "sol: the most significant trend in the evolution of modern man (homo sapiens) from the ancestors is increasing brain capacity. answer: (1)",
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|
667237a3ae98aa1755aaa15ec996801a | may i know the any changes of question paper model in this year of 2010 iit-jee compare to last year | askiitians.com | 2021.25 | [
{
"text": "dear ramesh there is no change in question paper pattern in jee2010 as compair to last year.(as maintion in information broucher jee 2010). there will be two question papers, each of three hours duration. both the question papers will consist of three separate sections on chemistry, mathematics and physics. questions in these papers will be of objective type. regards badiuddin",
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|
9cb5fce87946246afe3dbaf782660141 | give some examples for elemental semiconductors???? | askiitians.com | 2021.43 | [
{
"text": "semiconductors are available as either elements or compounds. silicon and germanium are the most common elemental semiconductors. compound semiconductors include insb , inas , gap, gasb , gaas , sic, gan . si and ge both have a crystalline structure called the diamond lattice.",
"name": "",
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},
{
"text": "silicon (si) and germanium (ge) are the main elemental semiconductors. hope you got the answer. all the best..",
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|
3edf36d77471752ea933004fa32a5429 | if lattice energy>hydration energy -the system cools down -insoluble. if lattice energy<hydration energy-the system heats up-soluble. how? | askiitians.com | 2021.25 | [
{
"text": "when a substance is dissolved in water its crystal structure is ruptured or it looses its lattice form and since lattice energy is always negative for a substance (because we define it to be the energy that is released during the formation of its lattice ) when the lattice is broken energy needs to be supplied and that is gained through the hydration enthalpy . now since hydration enthalpy is less than lattice enthalpy (numerically) the full energy is not gained through hydration enthalpy and hence it takes it from the surrounding by absorbing heat and hence cools down.",
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|
118d129d28a96189305df6b37011dc3a | 57. an embryo is formed by the growth and development of an foetus. [true/false] | askiitians.com | 2021.39 | [
{
"text": "answer: explanation: false",
"name": "",
"is_accepted": false
}
] |
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