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f0df5c429bffb45b31a70d259c8e1c72
please arrange the display of previous aquad in an archive
askiitians.com
2021.31
[ { "text": "could you please be little elaborative, so that we could help you understand.", "name": "", "is_accepted": false } ]
0a64ba4ae9330d8745df6d1cf93e78fe
obc minority requirments
askiitians.com
2021.25
[ { "text": "hello student, you need the obc caste certificate at the time of admission", "name": "", "is_accepted": false } ]
6158944e847a5769fb5ba481e3050a3e
number of deuterium exchange in 3,4,4,5- tetramethyl cyclohex -2, 5-dien-1-one ????
askiitians.com
2021.31
[ { "text": "dear student name of the given compound is wrong", "name": "", "is_accepted": false } ]
d224049bbff392faa2d59de801d5acb8
can anyone tell me the top 10 roman catholic minority engineering colleges in mumbai
askiitians.com
2021.25
[ { "text": "@ xavier , i can enlist the top 6 1- don bosco institute of technology 2- concelcao college of engg , bandra 3- rodrigues institute of technology 4- st francis institute of technology 5-st john college of engg , palghar 6- xavier institute of engg mahim", "name": "", "is_accepted": false } ]
e6bed02d3b171639c289a9cd02ba6b79
why does a person look tall at puberty ?
askiitians.com
2021.21
[ { "text": "at puberty, the bones of .the arms and legs elongate and make a person tall.", "name": "", "is_accepted": false } ]
b3580edd42c242f30a0fc4b209f8c36a
hello!! i hav got 4860(air) and 1090(air category(obc)), while my state rank is 495(overall) and 41(category) in architecture.. my state is delhi. will i be able to get into spa delhi or ne other spa's.????or will i get a good college ..???? pls reply as soon as possible.. with regards. nimisha
askiitians.com
2021.21
[ { "text": "hi nimisha. you got best score.and as you are obc category,youcan get admission to delhi's college. i have seen the cut offs.", "name": "", "is_accepted": false } ]
fa93ae2a8e0db4fc9c3a95174344dd78
s ir, my boards r over n only few days r left for iit jee so plzz direct me how to revise pcm in this short tym to gain max. marks n how to utilise my free tym max. thankzz!!
askiitians.com
2021.21
[ { "text": "dear charu; this is a very important time so be careful and do not loose your confidence. do not try any new concept/new book/new test at this time.revice only your old notes(coaching or yours notes).by this , you can revice full syllubus in a very short time and that will give you confidence. and most important do not try to check your rank at this moment. 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 pramod kumar iitr alumni", "name": "", "is_accepted": false } ]
807879631fdf813e87d9250f8c8a4ac6
the following observations have been arranged in ascending order. if the median of the data is 63, find the value of x. 29, 32, 48, 50, x, % + 2, 72, 78, 84, 95;
askiitians.com
2021.31
[ { "text": "given observations: 29, 32, 48, 50, x, x + 2, 72, 78, 84, 95. here n = 10, median is mean of the values of the observations at 1 ;th, and ( 1 + 1) th i.e., 5th and 6th 2 www.cbsepdf.com si1'tistics 229 places. :. median = x + (.x + 2) => 2.r + 2 = 63 2 2 => 2.r = 126 - 2 = 124 => x = 62.", "name": "", "is_accepted": false } ]
3cd20123f7ccbd2823f169c1469d8bae
write equations for the reaction of : (i) silver bromide with hypo in photographic process. (ii) cobaltous chloride with excess kno 2 in aqueous acidic solution.
askiitians.com
2021.21
[ { "text": "(i) agbr + 2 na 2 s 2 o 3 → na 3 [ag(s 2 o 3 ) 2 ] + nabr (hypo) soluble complex (ii) coci 2 + 7kno 2 + 2ch 3 cooh → k 3 [co(no 2 ) 6 ] + 2ch 3 cook + 2kci + no + h 2 o yellow ppt. (potassium hexanitro cobaltate iii)", "name": "", "is_accepted": false } ]
4f99a2fd749b880dfccb357ef48354d5
what does max. voltage amplitude mean? does it mean rms voltage or peak voltage?
askiitians.com
2021.43
[ { "text": "hi the absolute maximum rated supply voltage is the maximum voltage that can be supplied between the positive supply (v cc ) and negative supply (v ee ) pins without causing characteristics degradation or damage to the internal circuit. the rms value is the effective value of a varying voltage or current. it is the equivalent steady dc (constant) value which gives the same effect. for example, a lamp connected to a 6v rms ac supply will shine with the same brightness when connected to a steady 6v dc supply. thank u", "name": "", "is_accepted": false } ]
c9338673258b64ee92fec2c75f70cf6c
785mbh bghvbgfcv bgfcvbnmnbvcdghjkhgfdsswdfgkiloiuytrdeswdv vsdfghjkiuytrewertyu8iuydsdhjk ncxsdfghjuiuyrewaqwerpoiuyfdsdjklkjvcxcvbnm cghjkmjnbvcxcvbnmn bvccvbnmjdfghj ok!
askiitians.com
2021.43
[ { "text": "dear student i didn't get your query. please attach an image so that i can help you. i will be happy to help you.", "name": "", "is_accepted": false } ]
b19da98c5c3ba2cb6c250053133c61de
91. a potted plant is made to lie horizontally on the ground. which part of the plant will show
askiitians.com
2021.31
[ { "text": "answer: explanation: (a) root (b) shoot", "name": "", "is_accepted": false } ]
1e13609dbe97da35664c51cb2a1ed2e6
a ball of mass m1 experiences a perfectly elastic collision with a stationary ball of mass m2. what fraction of the k.e. does the striking ball lose if, a) it recoils at right angles to te original direction of motion, and b) the collision is head on
askiitians.com
2021.39
[ { "text": "the final kinetic energy of the ball is m 1 3 v 2 3/(m2-m1) 2", "name": "", "is_accepted": false }, { "text": "a ball of mass m1 experiences a perfectly elastic collision with a stationary ball of mass m2. what fraction of the k.e. does the striking ball lose if, a) it recoils at right angles to te original direction of motion, and b) the collision is head on a. 2m1/(m1+m2) b. 4m1m2/(m1+m2)^2 ​ is the answer for above question.", "name": "", "is_accepted": false } ]
a04226951698e6ba6add4cc532c94167
a decapeptide (mol. wt. 796) on complete hydrolysis gives glycine (mol. wt. 75), alanine and phenylalanine. glycine contributes 47.0% to the total weight of the hydrolysed products. the number of glycine units present in the decapeptide is
askiitians.com
2021.31
[ { "text": "decapeptide molecular mass = 796 a decapeptide on hydrolysis give glycine, alanine, phenylalanine. that means it need 9 water molecule for its hydrolysis. so the mass of the product = 796 + 9 x 18 = 958 in the total mass 47% = glycine so the glycine contribution = 47/100 x 958 = 450 glycine molecular mass = 75 no. of units of glycine = 450/75 = 6", "name": "", "is_accepted": false } ]
899304670f9bc2663de8ca5cfed207f9
a mixture of oxygen and hydrogen is analyzed by passing it over hot copper oxide and through a drying tube. hydrogen reduces the cuo according to the equation, cuo + h2 ò cu + h 2 0 ; oxygen then oxidizes the copper formed : cu + ½o 2 ò cuo. 100 cm ³ of the mixture measured at 25 ° c and 750 mm yields 84.5 cm ³ of dry oxygen measured at 25 ° c and 750 mm after passing over cuo and drying agent. what is the mole present of h 2 in the mixture?
askiitians.com
2021.25
[ { "text": "hi nikit, v=100 ml let h2 is x ml then xml of h2 and x/2 ml o2 are consumed..... then (100-x) ml o2 initially and 100-x-x/2 ml o2 finally therefore, 100-x-x/2 = 84.5 3x/2 = 15.5 x=31/3 mole% of h2 in the mixture is (31/3)*100/100 = 10.33%", "name": "", "is_accepted": false } ]
d44e8d40e30d10836efc5835f9918431
what is the cause of gravity?
askiitians.com
2021.43
[ { "text": "hi jiwesh, the cause of gravity is due to the mass density of an object. it is expreimentally observed that two or more bodies, with a finite mass attract each other, and that force of attraction is termed as gravitational force of attraction. best regards, ashwin (iit madras).", "name": "", "is_accepted": false }, { "text": "may be due to the accelerating movement of dark energy......totally unknown concept belived by todays physists that..may be the expantion of universe could stop by some dark energy...which is opposing the force of the big bang explosionand some day it could lead to the big crunch...", "name": "", "is_accepted": false } ]
cd1660d3d2aba9492bd2fdc9f0fa0a15
i got 23 marks in aieee
askiitians.com
2021.39
[ { "text": "hi john sorry but this much marks you will not be able to get into a good college. so you can try your luck next year. i think you can join askiitians 1 year programme this year to score better marks next time", "name": "", "is_accepted": false } ]
f39dd375aa4bdb91b74c9bef7ea3c4b0
mechanical properties of fluids and bernoulli's principle in brief
askiitians.com
2021.25
[ { "text": "a flowinmg liquid may be regarded as consisting of a number of layers one above the other.fluid mechanics is of fundamental importance as it talks both about the fluids both at rest and in motion. steady flow (stream line flow) it is the flow in which the velocity of fluid particles crossing a particular point is the same at all the times. thus, each particle takes the same path as taken by a previous particle through the point. steady, streamline or laminar flow the flow of fluid is said to be streamline if the velocity at any point in the fluid remains constant with time (in magnitude as well as in direction) in this case energy needed to drive the fluid is used up in overcoming the viscous force between its layers. all particles passing through a point in a steady flow follow the same path. the paths are known as streamlines> an example is water slowly flowing through a pipe. turbulent flow when the motion of a particle varies rapidly in magnitude and direction, the flow is said to be turbulent. in other words, when the velocity exceeds beyond the critical velocity, the paths and velocities of liquid change continuously and haphazardly. this flow is called turbulent flow. an example is water coming out of a fountain. critical velocity if in the case of a steady flow of fluids the velocity of flow is gradually increased it is found that the motion remains steady (streamline or laminar) upto a certain limit. if the velocity of flow crosses a certain limit the fluid particles do not follow the path of the preceding one and the motion becomes turbulent. the maximum velocity upto which fluid motion remains steady is called critical velocity. according to reynold, in case of motion of fluids in narrow tubes, critical velocity depends on the density r and coefficient of viscosity η of the fluid as well as radius of the tube. i.e. v c = η/rρ or vc = r η/ρr here r is a dimensionless constant called reynold's number. for steady flow r 3000 flow is turbulent. bernoulli's theorem “bernoulli's principle thus says that a rise (fall) in pressure in a flowing fluid must always be accompanied by a decrease (increase) in the speed, and conversely, if an increase (decrease) in , the speed of the fluid results in a decrease (increase) in the pressure”. consider a tube of flow, abcd. in a time δt , liquid moves and the liquid element becomes a'b'c'd'. in other words, we can also interpret that abb'a' has gone to dcc'd'. δm = ρa 1 v 1 δt = ρ a 2 v 2 δt work done by fluid pressure at end 1 = (p 1 a 1 )v 1 δt = p 1 δm/r work done by fluid pressure at end 2 = -(p 2 a 2 )v 2 δt = -p 2 δm/r work done by gravity = -(δm)g(h 2 - h 1 ) change in kinetic energy = (1/2) δm [v 2 2 - v 1 2 ] using, work-energy theorem (w = δk), p 1 δm/ρ - p 2 δm/ρ - δmg (h 2 - h 1 ) = 1/2 δm [v 2 2 - v 1 2 ] or p 1 /ρ + gh 1 + v 1 2 /2 = p 2 + gh 2 + v 2 2 /2 or p 1 + ρgh 1 + ρv 1 2 /2 = p 2 + ρgh 2 + ρv 2 2 /2 or, in a streamline flow of an ideal fluid, the sum of pressure energy per unit volume, potential energy per unit volume and kinetic energy per unit volume is always constant at all cross sections of the liquid. bernoulli's equation is valid only for incompressible steady flow of a fluid with no viscosity.", "name": "", "is_accepted": false } ]
2b0ac25d961a4a5b05b39aa1feaa6d69
a satellite of mass m revolves around the earth of radius r at a height x from its surface. if g is the acceleration due to gravity on the surface of the earth; the orbital speed of the satellite is (a) gr 2 /r+ x (b) gr / r- x (c) gx (d) (gr 2 /r+x) 1/2
askiitians.com
2021.43
[ { "text": ". (d) gravitational force provides the\nnecessary centripetal force. ? mv 2 /(r+x) = gmm / (r+x) 2 also g = gm /r 2 ? mv 2 /( r+x ) = m (gm/r 2 )\nr 2 /( r + x ) 2 ? v 2 = gr 2 /r+x\n? v = (gr 2 / r+x ) 1/2", "name": "", "is_accepted": false } ]
58cef82019ea536806561664ce33a933
what are non-narcotic analgesics? give example...................................?
askiitians.com
2021.43
[ { "text": "non-narcotic analgesics have no addictive properties. they are used to relieve mild aches like backache and headache. e.g.: aspirin, ibuprofen", "name": "", "is_accepted": false }, { "text": "non narcotics analgesic are those drug which are used to get relief from pain but don’t show any type of addictive behaviour.", "name": "", "is_accepted": false }, { "text": "these include nonsteroidal anti-inflammatory drugs (nsaids). aspirin and acetaminophen are two of the most widely used analgesics and are effective for mild to moderate headache and pain of musculoskeletal origin. these will cure the pain without any addiction towards the brain , they will not affect the cns directly . example – aspirin ,", "name": "", "is_accepted": false } ]
973c695922f9b6db9d5927cb64736562
i wanted to know if engineering course at jain university,bangalore is worth going for??it would be great if you can give some details(if u can get any) on placement packages offered to which branch and by which company. it would be really helpful if u provide me with the info.
askiitians.com
2021.21
[ { "text": "dear student, jain university is good enough but depends wat other options you have in hand", "name": "", "is_accepted": false } ]
52f1af8f5d37f1f4addb649fa87dd515
which is the best book for calculus for concepts+questions. i have used arihant differential calculus and it has less theory and much questions. the same is with tmh publications. please recommend a good book.
askiitians.com
2021.43
[ { "text": "please refer rd sharma", "name": "", "is_accepted": false }, { "text": "problems in calculus of one variable, by ia maron", "name": "", "is_accepted": false } ]
4bc12ff4c1e6dc8c50f1cc1958494323
why do colloidal solutions differ in colours?
askiitians.com
2021.21
[ { "text": "solutions are a homogeneous mixture of dissolved solute particles in a solvent. everything is dissolved. a characteristic of solutions is that if a beam of light was passed through it, it would come out the other side completely the same. this is known as the tyndall effect. colloids are a dispersion of particles of one substance through a dispersing medium made of another substance. mayonnaise is an example of a colloid. if a beam of light is passed through a colloid, it will be scattered and dispersed in different directions. the wavelength of the light may change too, causing a different color to appear.", "name": "", "is_accepted": false } ]
5e1aaa826d102247dcac6b91e414ece2
find the equation of circle whose centre is( 3, - 1) and which cut off an intercept of length 6 from the line 2 x - 5y + 18 = 0
askiitians.com
2021.43
[ { "text": "hello ashutosh. first lets find the perpendicular distance of (3, – 1) from the line 2 x - 5y + 18 = 0. it would be p= |2*3 – 5*-1 + 18|/sqrt(2^2+5^2) = sqrt(29) now, we know that a perpendicular from (3, -1) to the line (which acts as a chord to the circle) would also bisect it. so by pythagoras theorem, r^2= p^2 + (6/2)^2 where r is radius r^2= 29 + 9= 38 so, eqn of circle: (x – 3)^2 + (y+1)^2= 38 or x^2 + y^2 – 6x + 2y – 28= 0 kindly approve :)", "name": "", "is_accepted": false } ]
e7841995e2a9539911f8b701ec0432e5
two bar magnets are quickly moved towards a metallic loop connected across a capacitor 'c' as shown in the figure. predict the polarity of the capacitor. ?
askiitians.com
2021.21
[ { "text": "dear student please attach the image of the question regards", "name": "", "is_accepted": false }, { "text": "dear student question is not clear please attach an image, we will happy to help you good luck cheers", "name": "", "is_accepted": false } ]
07227da9b2e8b17a4fa0e53a6a0e1191
barch air -13642 category obc - 3078 state rank overall - 3277 category obc - 951 please give me a list of colleges in which i can get into and also can i get spa vijaywada as i belong to andhra pradesh .
askiitians.com
2021.31
[ { "text": "dear hassan, these are some aieee b.arch colleges in national and state wise. so please check these given colleges- school of planning and architecture, i.p. estate, new delhi school of planning and architecture, bhopal school of planning and architecture, vijayawada college of engineering, thiruvananthapuram rimt college of architecture, punjab guwahati college of architecture, assam indian institute of technology, roorkee sardar patel university, gujraat. best of luck cracking iit just got more exciting,it’s not just all about getting assistance from iitians, alongside target achievement and rewards play an important role. askiitians has it all for you, wherein you get assistance only from iitians for your preparation and win exciting gifts by answering queries in the discussion forums. reward points 5 + 15 for all those who upload their pic and download the askiitians toolbar, just a simple click here to download the toolbar…. so start the brain storming…. become a leader with elite expert league askiitians thanks aman bansal askiitian expert", "name": "", "is_accepted": false } ]
a821d803f33b735abcba3f84f25914a1
a child staying in the coastal region tests the drinking water and also the sea water with his tester. he finds that the compass needle deflects more in the case of sea water. can you explain the reason?
askiitians.com
2021.21
[ { "text": "dear student sea water contains more amount of salt than drinking water. so the sea water is a better conductor of electricity. this is the reason that the compass needle deflects more in case of sea water. thanks", "name": "", "is_accepted": false } ]
65745ab54a982a0462eb595247b1a83b
a thin wire ring of radius r has an electric charge​ q. the increment in the tension in the wire if a point q౦ is placed centre of the ring is?
askiitians.com
2021.25
[ { "text": "surface area of the ring will be = pi r^2 hence the tension produced = q * surface area = q *pi* r^2 therefore, the increment in the tension in the wire if a point q౦ is placed centre of the ring is q *pi* r^2", "name": "", "is_accepted": false } ]
a0f065551596b6b32f4291d8c55f381e
question 9: which of the statements given below is correct? (i) in winter the winds flow from the land to the ocean. (ii) in summer the winds flow from the land towards the ocean. (iii) a cyclone is formed by a very high-pressure system with very high-speed winds revolving around it. iv. the coastline of india is not vulnerable to cyclones.
askiitians.com
2021.31
[ { "text": "answer:(i) correct in winter the winds flow from the land to the ocean. this is called land breeze. (ii) not correct in summer the winds flow from the ocean towards the land. this is called sea breeze. (iii) not correct a cyclone is formed by a very low-pressure system with very high-speed winds revolving around it. the low-pressure region is called the eye of the cyclone. (iv) not correct the coastline of india is very vulnerable to cyclones.", "name": "", "is_accepted": false } ]
366084071191889d88a683346f0ae709
if (a + b+ c+d) =pi, then ∑ cosa cosb - ∑sina sinb =
askiitians.com
2021.39
[ { "text": "dear student let a = b= c= d = pi/4 value of required expression = 4 ( 0.5 ) - 4 ( 0.5 ) = 0 regards", "name": "", "is_accepted": false } ]
9c5c2bd3f0dbc0eecff698b5f9c93425
what is effect elliptical motion on session of earth
askiitians.com
2021.31
[ { "text": "elliptical orbit. while the earth is rotating upon its axis, it is also moving around the sun in the same sense, or direction, as its rotation. if we select a spot on the earth where the sun is directly overhead, in order for that spot to rotate with the earth and come back so that the sun is overhead again, it must turn a little extra because of the earth's motion around the sun. the earth turns a little more than once with respect to the stars in order to complete one rotation with respect to the sun. the \"little extra\" is just the angle through which the earth has moved around the sun in a day's time. on the average, this angle amounts to a little less than one degree per day (360 degrees/ 365 ¼ days) the time for the earth to turn this small angle is about four minutes. this little difference would cause no concern if it were always the same, but it is not! recalling that the earth moves in an elliptical path around the sun, rather than a circular path, it turns out that the earth is nearer to the sun in january than in july. the difference is about three million miles (out of an average distance of ninety-three million miles). the speed of the earth in its orbit increases as it gets nearer to the sun. since the earth is closest to the sun in january and furthest in july, it follows that the earth is moving more rapidly in its orbit in january than in july! thus, the earth must rotate a little more each day from october to april to return to a chosen spot to face the sun again. this small amount each day accumulates until it amounts to a difference of 7.7 minutes on april 2. having to turn a little more each day means the sundial lags behind the standard clock and so the sundial time minus standard time on april 2 is -7.7 minutes. from april 2 on, the earth rotates a little less each day to return to a chosen spot to face the sun again, and this decrease accumulates from april to october until it amounts to a difference of +7.7 minutes on october 2. the difference between sundial time and clock time resulting from the varying speed of the earth in its orbit .", "name": "", "is_accepted": false } ]
a1c9f24aef06346ad7b1c5b274489df9
how to start preparation of 1 st year botany for ipe as well as neet in just one month
askiitians.com
2021.43
[ { "text": "dear sharanya in 1 month u cannot go into the deep concept , so, what u need to do is just understand the imp things . 1- frst of all take the imp point of that chapter , if u have notes , thats ok , else refer to the askiitians revision notes . 2- take previous year ques from that chap and do it , 3- read the summary part thats given in ncert textbook . 4- always focus on the black colour bold letter word given in ncert , they are most imp also , u need to focus on box information also . by this u can cover at least 70 percent for neet prep . all the best", "name": "", "is_accepted": false } ]
8247a5554ebbcc2ff650b5c21ed5cce4
just give me ans. with reasion- if there is npn transistor , if temperature increase in npn tra. what will happen in transistor voltage, increase or decrease. and why?
askiitians.com
2021.39
[ { "text": "dear student, a transistor actually relies on base voltage input - the current input is incidental. please feel free to ask your queries here. we are all iitians and here to help you in your iit jee preparation. all the best. win exciting gifts by answering the questions on discussion forum. so help discuss any query on askiitians forum and become an elite expert league askiitian. now you score 5+15 points by uploading your pic and downloading the askiitians toolbar respectively : click here to download the toolbar.. askiitians expert sagar singh b.tech, iit delhi", "name": "", "is_accepted": false } ]
6bfc8551cf70c69ce4525fc3de1d0fc9
solve differential equation: (2x^(2)y+y^(3))dx+(xy^(2)-3x^(3))dy=0 the solution is: x^2 y^12=c(2 y^2-x^2)^5 but how?
askiitians.com
2021.31
[ { "text": "hello apurva, we can write given eqn as dy/dx= – (2x^(2)y+y^(3))/(xy^(2)-3x^(3)) but this is the standard homogeneous form as we can write – (2x^(2)y+y^(3))/(xy^(2)-3x^(3))= – (2v+v^(3))/(v^(2)-3) where v= y/x so that y= xv or dy/dx= v + xdv/dx so, we have v + xdv/dx = – (2v+v^(3))/(v^(2)-3) or xdv/dx= – (2v+v^(3))/(v^(2)-3) – v= f(v) (say) so, dv/f(v)= dx/x which is simply the variable separation form, and can be easily solved by simple integration as ∫dv/f(v)= ∫dx/x + c after you perform the integration, simply substitute v= y/x back into the eqn and u ll get the final ans. kindly approve :))", "name": "", "is_accepted": false } ]
194706ca03bea11a229ed4f211bd975a
best book for iit/aieee of math
askiitians.com
2021.43
[ { "text": "i think you can refer the following: maths : 1.)hall & knight(algebra) 2.)s.l loney (coordinate,trignometry,vector) 3.)r.d sharma 4.) m.l khanna 5.) tata mc.graw hill", "name": "", "is_accepted": false }, { "text": "rd objective", "name": "", "is_accepted": false } ]
8210e4f552c7f72c423c58821e574e99
the solubility of agi in water is 2x10^-5mol/l at 298 k.then the solubilty of agi ina .04m cai2 solution at 298 k is
askiitians.com
2021.21
[ { "text": "agi --------> ag+ + i- ksp = s^2 = 2 x 10^-5 ksp for agi in cai2, ksp’ = s*(s+0.08) = s^2 + 0.08s = 2 x 10^-5 + root(20) * 10^-3 = 0.02 x 10^-3 + 4.21*10^-3 = 4.23 x 10^-3 approx.", "name": "", "is_accepted": false } ]
5321802df11259b8847956780e3c2f5a
consider a function g(x) which is defined and differentiable on (-8,8) and increasing in (1,2) and decreasing elsewhere. we construct another function f(x) = g(x) - (g(x))2 + (g(x))3. find domain of f(x), it’s interval of monotonicity.
askiitians.com
2021.31
[ { "text": "f(x) = g(x) - (g(x))^2 + (g(x))^3 f'(x) = g'(x) ( 1 - 2 g(x) + 3g(x)^2) now, 3g(x)^2 - 2g(x) + 1 has discriminant = 0. hence, this means that this is either always positive or always negative. g'(x) > 0 in the interval (1,2) g'(x) < 0 in the interval (-8,1) u (2,8) the domain of f(x) is same as that of g(x) which is (-8,8). for the interval of monotonicity are : we cannot clearly say that 3g(x)^2 - 2g(x) + 1 is positive or negative as we do not know much about g(x). say it is positive. hence, f(x) is monotonically increasing in interval (1,2) f(x) is monotically decreasing in interval (-8,1) u (2,8) thanks bharat bajaj iit delhi askiitians faculty", "name": "", "is_accepted": false } ]
c19d12bf28c8c80002f45bca44370b92
sir,how many no. we get for best iit college in obc categary
askiitians.com
2021.21
[ { "text": "dear it depends on toughness of the paper and competion every year but still you can anlyse marks and rank of iitjee as given below iit jee 2012 marks vs rank result : marks ranks marks ranks 385 - 366 1 -10 211 - 208 3501 - 3800 365 - 325 11 - 100 208 - 206 3801 - 4100 324 - 308 101 - 200 206 - 202 4101 - 4500 307 - 298 201 - 300 202 - 198 4501 - 4900 297 - 286 301 - 400 198 - 195 4901 - 5300 286 - 280 401 - 500 195 - 192 5301 - 5700 280 - 275 501 - 600 192 - 189 5701 - 6100 275 - 270 601 - 700 189 - 187 6101 - 6500 270 - 266 701 - 800 187 - 184 6501 - 7000 266 - 263 801 - 900 184 - 180 7001 - 7500 262 - 259 901 - 1000 180 - 176 7501 - 8000 259 - 253 1001 - 1200 176 - 172 8001 - 9000 253 - 248 1201 - 1400 172 - 168 9001 - 10000 248 - 243 1401 - 1600 168 - 164 10001 - 11000 242 - 238 1601 - 1800 164 - 159 11001 - 12000 238 - 234 1801 - 2000 159 - 156 12001 - 13000 234 - 228 2001 - 2300 156 - 152 13001 - 14000 228 - 224 2301 - 2600 151 - 149 14001 - 15000 224 - 219 2601 - 2900 149 - 146 15001 - 16000 219 - 216 2901 - 3200 146 - 143 16001 - 17000 215 - 211 3201 - 3500 143 - 138 17001 - onwards. minimum qualifying mark for ranking (mqmr) and aggregate cut-off : jee-2012 category mqmr aggregate cut-off chemistry physics mathematics ge 20 20 34 229 obc 18 18 31 207 sc 10 10 17 119 st 10 10 17 115 pd 10 10 17 11 thanks & regards parvez ali askiitians faculty btech ism dhanbad", "name": "", "is_accepted": false } ]
fe4a57d40af5cff8a63e5cb249a91f7d
given a=sin^2x+cos^4x,then for all real x, min≤a≤max
askiitians.com
2021.43
[ { "text": "we know that sin^2x also cos^2x >= cos^4x add sin^2x both sides cos^2x + sin^2x >= cos^4x + sin^2x 1 >= cos^4x + sin^2x therefore max of a is 1 also both terms cos^4x + sin^2x = (1 – sin^2x)^2 + sin^2x = 1 + sin^4x – 2sin^2x + sin^2x =sin^4x – sinn^2x + 1 = (sin^2x – 1/2)^2 + 3/4 now min =3/4 and max = 1", "name": "", "is_accepted": false }, { "text": "dear student, please find the solution to your problem in the attached image. thanks and regards", "name": "", "is_accepted": false } ]
649d6122de1031aa1f6c4dce6f3eec7c
sir iam bhargav i have secured 234 marks according to key. i belong to oc category can u tell me what can be my rank
askiitians.com
2021.21
[ { "text": "bhargav,your rank can between 4500-5000", "name": "", "is_accepted": false } ]
69f72ffd1c1ea6921d2758673a90f076
i have got a seat in iit roorkee and paid the fee in the frst round of seat allocation. i have to inform to iit roorkee for my admission. but due to some reasons i cannot go to roorkee. the deadline of withdrawl was before the third round so i didn’t give a withdrawl form. they specified that we will not be getting any refund if we do not report. is there any way to get the refund for my fee paid.
askiitians.com
2021.43
[ { "text": "jee office in roorkee contact no. +91-1332-285224, 284272 u.g. admission contact no. +91-1332-284289, 285200 registrar iit roorkee contact no. +91-1332-285311 the above are the means by which you can contact the concerned authority and tell them about your situation.you have to keep in mind that you have to be quick in getting things done because there would be lot of traffic of complaints. thanks & regards aziz alam iit roorkee askiitians", "name": "", "is_accepted": false }, { "text": "i tried to contact them but the phones sometimes were busy and sometimes it doesn’t connect. can i try a letter to the chairman of jee advanced for refund. they have specified they wont give a refund after third round and we cannot surrender the seat but will they give any refund as i may not be the only one with the problem.", "name": "", "is_accepted": false } ]
7e8f7ac034ac77f52818be3f4e4bed3a
which one is best private college in india??
askiitians.com
2021.39
[ { "text": "bits pilani\nbit mesra\nkit\nvit vellore", "name": "", "is_accepted": false } ]
4af4e793410a52367c504fec492a0d8f
gen categ for air7300 what likely branch/iit?
askiitians.com
2021.43
[ { "text": "dear pawan with this rank you will get ismu dhanbad you can get enviornmental,miniral,mining machinery,chemistry,matematics,applied geology,geophysics. and dual dergree courcs please feel free to post as many doubts on our discussion forum as you can. we will get you the answer and detailed solution very quickly. all the best. regards, askiitians experts badiuddin", "name": "", "is_accepted": false } ]
0fcfb10e6337ff21f123aa375884b74a
find the dimension of electric dipole moment p ?
askiitians.com
2021.39
[ { "text": "siply break it 's formula & then put their dimensional formula separately. i.e; [p]= [q x d ] =[q] [d] { where d= distance of separation b/w them} = [c] [m] = [ampere x sec] [m] = [a1t1l1] thanks and regards apoorva arora iit roorkee askiitians faculty", "name": "", "is_accepted": false } ]
cb0fdcf436a27654f0d34b1e8226d603
sin a = 1/2 and cos a = 1/3. hence, a = π/ 6 and 0 so, a = π/ 6 and cos -1 (0) > b >cos -1 (1/2) how?????
askiitians.com
2021.21
[ { "text": "your question is wrong either sina=1/2 or cosa=1/3 because if sina=1/2 for sure cosa=root 3/2 (positive or negative) check your question and respost it", "name": "", "is_accepted": false } ]
e32dd93bb287a1cbc8c9e7c55c75862e
sir , tell me that ...which of this is more important in jee mains college [aieee] 1. branch 2. college
askiitians.com
2021.25
[ { "text": "try for ism..chemical .....u can have a branch change for mechanical or similar branches easily over there..in comparison tonother iits", "name": "", "is_accepted": false } ]
c864453f80b1ef2b370a13b5d7133971
circumcentre of triangle formed by a square + 2 x + 2 y + 4 equal to zero in x + y is equal to 2 is equal to zero is
askiitians.com
2021.43
[ { "text": "dear student please write the question in a standard form or attach an image of the question regards", "name": "", "is_accepted": false } ]
f9f4cf5dbcd366b49224ba61798df6d7
no of isomeric forms of c7h9n having benzene ring will be
askiitians.com
2021.39
[ { "text": "regards, nirmal singh askiitians faculty", "name": "", "is_accepted": false }, { "text": "55 structures of amines are possible with given chemical formulae c7h9n. in aniline methyl group can be placed in 3 positions. ( ortho , para , meta ). another to structures are can be seen in above pic", "name": "", "is_accepted": false }, { "text": "this the 5 benzene ring is made in this question one benzene ring 6 carbon atoms is minimal criteria to form one benzene ring the molecular ... i think only one benzene ring will be there in compound having formula c7h9n . ... one most probably considering the number of carbon at", "name": "", "is_accepted": false } ]
4d8f2d6593be104aa8ae4aefa222c75b
my air ranking is 65016 in aieee (marks 113)gen category. state rank 2727 which colleges should i expect by state and air plz tell
askiitians.com
2021.21
[ { "text": "dear rakesh, you must tell your home state. you may get good nit . 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", "name": "", "is_accepted": false } ]
927455833d369c671fb5de166c1e098d
the magnitude of a given vector with end points4,-4,0 and -2,-2,0 must be
askiitians.com
2021.25
[ { "text": "", "name": "", "is_accepted": false }, { "text": "dear harsh hence vector will be = – 6, +2 , 0 hence magnitude = sqrt(36 + 4 + 0) = sqrt(40) = 2 sqrt(10)", "name": "", "is_accepted": false } ]
d2443e5a6736df06bbc4a397f2b44e1f
in a triangleabc, if 2anglea =3 angle b =6, find the angles of triangle.
askiitians.com
2021.43
[ { "text": "dear student 2a = 3b = 60 degree hence a = 30 b = 20 degree now c = 180 – (a + b) c = 180 – (20 + 30) c = 180 – 50 = 130 degree", "name": "", "is_accepted": false } ]
a052446081adecc09794204c8222cef1
steam at 120 degree c is continuously passed through a 50cm long rubber tube of inner and outer radii 1cm and 1.2cm. the room temperature is 3 degree c.calculate the rate of heat flow through the walls of the tube.thermal conductivity of rubber= 0.15j/m-s-c
askiitians.com
2021.21
[ { "text": "t(r),1<r<1.2, dq/dt=(k2pilr)(dt/dr),(2pilk)rdt/dr=constant(c),(2pilk)dt=dr/r,(2pilk)(t-276)=ln(r)c,c=(2pilk)*117/ln(1.2)=dq/dt", "name": "", "is_accepted": false } ]
05bf5c03f2595e5d4d78b11ed5e7e82f
sir i belong to obc category and my category rank is 62000 and i belong to delhi .... my sate rank is 15000 nd state category rank is 1800 can i get admission in delhi technical university (dtu) and nsit. plz reply sir.....as soon as possible....
askiitians.com
2021.25
[ { "text": "dear student, pls check opening and closing rank of college and branch that you want to take admission in on its official website", "name": "", "is_accepted": false } ]
e3453356f6a35ea4961b812a69b849c3
sir, i am getting 211 in jee 2010 and 281 in aieee 10 sir kindly reply me in detail what to do i am interested in computer field n maths field will it be there nething for me in iit's i passed 12th in 2009
askiitians.com
2021.39
[ { "text": "dear sonu, as your score is of 211 marks in iit jee 2010, so with these marks your estimated rank would be some where in between 4500 to 5000. according to the calculation chances are less that you can get any expected branch in of the iit's . and as compared to the last year's cutoff this year this has been predited that the cutoffs will be lowered, as the level of the paper is slightly decresed. now if we talk about your in aieee 2010 you have quite good score to get computer science ang engineering in any of the nit's , so it is advicable to you that rather than opting for iit's you can go for nit's. however score may vary and as a result rank may also vary, a slight difference may create lots of difference in rank. for further details you can visit the following: http://www.askiitians.com/aieee-2010/aieee-2010-cut-offs.aspx http://www.askiitians.com/iit-jee-2010-cut-offs.aspx http://www.askiitians.com/iits-2009-2010-opening-and-closing-rank.aspx 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. askiitians provide you all the best possible information, feel free to ask. all the best. thanks and regards. akhilesh shukla", "name": "", "is_accepted": false } ]
13748b251027773fc4849e0a7efb87c1
which of the following has maximum number of lone pairs associated with xe ?
askiitians.com
2021.31
[ { "text": "dear student please attach the image of the question regards", "name": "", "is_accepted": false } ]
7abe86dc7db6be6135ad39b12ecfd011
what type of questions will we get in iit gurukulam
askiitians.com
2021.21
[ { "text": "dear student they will ask questions from previous classes like if you want to take admission in 11 th class then they wikk ask from 9 and 10thbclass", "name": "", "is_accepted": false }, { "text": "they will ask the foundation questions of class 9 and 10 just be relax questions are easy to solve there", "name": "", "is_accepted": false }, { "text": "dear friend planning, mathematics – part i 20 questions will be mcqs and 5 questions will have answers to be filled in numerical value. aptitude test will consist of 50 questions and planning based objective type mcqs will consist of 25 questions . thank u", "name": "", "is_accepted": false } ]
aa2aceacb553bc4b7eed2bafc43b4db4
i have got 4379 rank in jee adv (general category). i have gone through the opening and closing ranks according to that i have a good chance of getting a seat in ism (cse, electrical, mechanical etc.,) and also in new iits i am also expecting a good rank in mains ( 234 and 97.3% in ap board ) is it better to join ism / nit / newer iits i am in a daze pls give me a good solution
askiitians.com
2021.43
[ { "text": "hi.. first of all i would like to congratulate you for a good score in jee advance. now, it actually depends on your priorities, whether you are interested in an iit (new iits) with branches (except cs and ece) or you want to be more specific about the branches compromising the iit and opting for an nit or ism. all, the iits, nits, and ism are very good. but, now you have to decide whether you are more towards your specific branch or college. hope you take a good decission. regards", "name": "", "is_accepted": false } ]
d7856622f52f059f73931557e31d5edb
i should get around 195 in jee advanced. what would be my approx. air and would i get any branch in the old iits?
askiitians.com
2021.25
[ { "text": "please tell us your category.. general/obc/sc... if you are in general, you will not get any branch in any iit. if in sc, you may get a decent branch.. thanks bharat bajaj askiitians faculty iit delhi", "name": "", "is_accepted": false }, { "text": "your general category rank will be close to 3000.you’ll get the branch of your choice at any of the new iits.", "name": "", "is_accepted": false } ]
33acbc8e7f9d1d815f5056517abf5d97
mention a rational number which has no reciprocal. mention a rational number which has no reciprocal.
askiitians.com
2021.31
[ { "text": "dear student a rational number “ 0 ” has no reciprocal or multiplicative inverse. thanks", "name": "", "is_accepted": false }, { "text": "practice previous year questions many times.. appear for a test series and analyse it properly (giving 2–3 hours) revise your notes multiple times till they enter your soul :) find your strong points and chapters, work on them.. solve other people’s doubts. it makes your own concepts very clear", "name": "", "is_accepted": false } ]
e64eb98ec92f14a3b1aa24abe4c3917c
what is meant by a ‘discharged’ body ?
askiitians.com
2021.43
[ { "text": "the body from which the charge has been earthed loses the charge on it. such a body is known as a ‘discharged’ body.", "name": "", "is_accepted": false } ]
e58dcb903419e126530ecdb58e4d1f3f
how to make silver from chemicals??
askiitians.com
2021.43
[ { "text": "it can be made from tollens reagent , by reacting it with aldehydes", "name": "", "is_accepted": false } ]
d6bf69d65bc1f2809a87f6995f2674bc
what is the meaning of polar aprotic solvent? write the sructures of the following compounds and stat which is polar aprotic solvent?? a)dmso b) crown ether c)dmg d)all
askiitians.com
2021.25
[ { "text": "in a polar aprotic solvent, nucleophilicity increases up a column of the periodic table as there is no hydrogen bonding between the solvent and nucleophile; in this case nucleophilicity mirrors basicity. dmso is apolar aprotic solvent. if useful please approve it.", "name": "", "is_accepted": false }, { "text": "a option is correct because in an aprotic solvent hydrogen should not be connected directly with electronegative element.", "name": "", "is_accepted": false } ]
b05e7be71c9ed6e846fce7ba50a33842
dear sir, my counselling is scheduled for 16th. rank 7118. wwill i get anything at new iits ? i read the iist brochure, and it says that if you opt for any programme in iit, it bhu or ismu you will not be included in the merit list of iist. so, should i leave out some probable options in my counselling choice and be safe with a chance at iist ? so confused........
askiitians.com
2021.43
[ { "text": "dear ramakrishnan, thoudg you will be getting some branch at the new iits but that wont be good enough for you to for than some good branch at iist with either avionics or aerospace. there is no matter to get confused be sahe with the iist counselling. thank you.", "name": "", "is_accepted": false } ]
f8c7524f0ef35db59345c0bc592d37be
aieee 2008 ranks??
askiitians.com
2021.31
[ { "text": "the actual score and rank in aieee 2008 . total score(315) all india rank 255 100 1000 225 2000 208 5000 187 10000 166 15000 152 20000 142 30000 126 40000 115 50000 105 70000 90 1,00,000 75", "name": "", "is_accepted": false } ]
1b63103ee4302f98fd79a38a77448933
sir, my aieee all india rank is 23546.there is a possibility of myself getting metallurgy in nit,warangal & nit trichy.i wish to know the prospects for metallurgical engineering in future.please give your valuable advice in this regard.
askiitians.com
2021.43
[ { "text": "try for better branch in other nits. don't run for warangal ,trichy.", "name": "", "is_accepted": false } ]
be5fdfa7c9c6f3e549bb0e812d8e8500
sir i want to see the 10th state board physics mind maps
askiitians.com
2021.25
[ { "text": "dear student the state board syllabus id different for different state. please specify the state. if you want mind map of ncert , you can follow oswal book mind map. hope this will help good luck cheers", "name": "", "is_accepted": false } ]
42551503665c7a4a1d158814314431c0
sir, my name has appeared in eml of iitjee 2009. how i can know my rank in eml and what are the procedure for obtaining/getting councelling letter, which is required to submit for coaching course in coaching institute? an earliest reply will be appreciated. thanks
askiitians.com
2021.31
[ { "text": "dear mohit, this time the total no. of students in eml is 60,000 and the rank is also displayed as per my information. if you arenot able to see ypur rank on net than your rank might be quite poor. you will get to know about your rank ( if not now ) towards the end of august when a scorecard will reach your postal address. those students which are being called for counselling will receive a counselling letter before the counselling schedule, you need not to worry about that and if are not to be allowed for counselling than there are no means of getting a counselling letter. thank you.", "name": "", "is_accepted": false }, { "text": "i want to know about the admission procedure in eml colleges", "name": "", "is_accepted": false } ]
ac87296a1b3b9f9f720c4b725ee97f41
ranked 1873 in obc. what are possibilities regarding choice of course and college. haaroon.
askiitians.com
2021.43
[ { "text": "dear hameed lots of option available for you in ismu dhanbad but i will suggest you to take mining engineering in ismu dhanbad. mining branch have 100 % placement with more than ang 7 lac per anum salary pachage please feel free to post as many doubts on our discussion forum as you can. we will get you the answer and detailed solution very quickly. all the best. regards, askiitians experts badiuddin", "name": "", "is_accepted": false } ]
dac06d43c417a30aa5cd8b28fa9ff5a3
a. by which process do green plants synthesize their food? b. name the factors which take part in this process. c. write the chemical equation of the above process.
askiitians.com
2021.31
[ { "text": "(a) photosynthesis is the process by which the green plants can prepare their food in the form of carbohydrate. the light energy is captured by chlorophyll, the carbon dioxide is fixed and the food is prepared. (b) there are various factors which are responsible for photosynthesis. the common factors are carbon dioxide, chlorophyll, water, light and temperature. (c) the reaction of photosynthesis is given carbon dioxide + water + light energy → carbohydrate + oxygen. the chemical equation is given as 6co2 + 6h2o ------> c6h12o6 + 6o2", "name": "", "is_accepted": false } ]
f417e236126196b68a8ea47c734dff9a
cos8 degree=
askiitians.com
2021.21
[ { "text": "pls, retype the question in a proper format.....", "name": "", "is_accepted": false }, { "text": "0.99026806874157031508377486734485 hope the ans is correct", "name": "", "is_accepted": false }, { "text": "0.99026806874", "name": "", "is_accepted": false }, { "text": "@nich priyatham u r right", "name": "", "is_accepted": false } ]
ec966a1f7d0234588214e13415e1c2e2
how do metallic and ionic substances differ in conductivity
askiitians.com
2021.39
[ { "text": "metals are conducting due to the mobility of electrons while conductivity of ionic compounds is due to mobility of ions . consequently, metals are conducting in the solid states while the ionic compound conduct electricity either in molten state or in aqueous solution. i hope you will understand it easiy!!", "name": "", "is_accepted": false } ]
3899ec0852b3451c96c8c7404b5c0fc6
if i get into preparatory corse in iit 2010 should i write iit 2011 after 1year course and clear it and then get in the actual 4 year course or no.....
askiitians.com
2021.21
[ { "text": "hi priya , if you are going for to enroll for a 1 year course you can surely write jee 2011 and if you are able to get a good rank and make it to a desired college you can go for a 4 year course . but before going for preparation you should set your aim on which college and what stream you want to go for so that you can raise up your preparation level . you can check out free sample papers and study material available on askiitians.com and also enroll for a free demo for online class so that you have a slight idea. feel free to post as many doubts you have we wud be happy to help . all the best !!! regards anshul", "name": "", "is_accepted": false } ]
1e975479e27e2f233d921d27591e8477
i am very possessive about my dream of persuing engineering in either iit kanpur or iit delhi, with either computer science, mechanical or aerospace engineering as my stream. thus i would like to know that what marks and rank in iitjee will surely fulfill my dream?
askiitians.com
2021.21
[ { "text": "dear swastik to get mechanical in iit-delhi you should get below 600.to get in iit kanpur you can get dual degree in aero space till around 1800-2000 rank ,but for b.tech in aero you should get below 1500. please go through this link where you can see last year opening and closing ranks http://www.askiitians.com/iit-jee-2009-rank.aspx please feel free to post as many doubts on our discussion forum as you can.we will get you the answer and detailed solution very quickly. all the best. regards, askiitians experts prudhvi teja 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.", "name": "", "is_accepted": false } ]
0a38eeea76ebc14078346eeb99eb105a
sir will you suggest how me how the revision plan should be?
askiitians.com
2021.43
[ { "text": "simple just make plan so that you can revise each and every corner of your chapter you can take help of topic revise plan avialable in the market", "name": "", "is_accepted": false } ]
8f510cfc7283598a0ede115b42550c04
a force of ˆ fk- acts on o, the origin of the coordinate system. the torque about the point (1, -1) is ?
askiitians.com
2021.25
[ { "text": "dear student please attach the image of the question regards", "name": "", "is_accepted": false }, { "text": "dear student question is not clear please attach an image, we will happy to help you good luck cheers", "name": "", "is_accepted": false } ]
6e84fe344876c7bce30353defc46b0de
mark t if the statement is true and f if it is false: (a) we can obtain an enlarged and erect image by a convex mirror. (t/f) (b) a concave lens always form a virtual image. (t/f) (c) we can obtain a real, enlarged and inverted image by a concave mirror. (t/f) (d) a real image cannot be obtained on a screen. (t/f) (e) a concave mirror always form a real image. (t/f)
askiitians.com
2021.39
[ { "text": "(a)false the image formed by a convex mirror is always virtual, diminished and erect. (b) true the image formed by a concave lens is always virtual, erect and diminished. (c) true the image formed by a concave mirror can be real or virtual, enlarged or diminished, and erect or inverted, depending upon the distance of the object from the mirror. (d) false the image that can be obtained on a screen is called a real image. virtual images cannot be obtained on a screen. (e) false a concave mirror can form both real and virtual images. the nature of the image depends on the distance of the object from the mirror.", "name": "", "is_accepted": false } ]
40c867a1565feee5dd07b2dcef8d3fb7
if tan(πcosθ)=cot(πsinθ),the cos,sin are roots of the equation a.4x 2 -4x-1=0 b.4x 2 -2x-1=0 c.8x 2 -4x-3=0 d.none of these
askiitians.com
2021.21
[ { "text": "hi menka, tan(πcosx) = cot(πsinx) = tan(π/2 - πsinx) so πcosx = π/2-πsinx or cosx = 1/2-sinx. squaring, cos 2 x = 1/4 + sinx 2 x - sinx or 2sin 2 x-sinx-3/4=0 or 8sin 2 x-4sinx-3 = 0 next also sinx = 1/2-cosx.... similarly squaring you will get 8cos 2 x-4cosx-3=0. and hence option (c). hope that helps. best regards, ashwin (iit madras).", "name": "", "is_accepted": false } ]
957e4429736e3adf206a31f111ce8a08
in questions hw to identify whether it is abt uniform circular motion or non uniform circular motion?
askiitians.com
2021.43
[ { "text": "if the particle is moving with uniform speed or it has no tangential acceleration then it is the case of uniform (circular) motion otherwise not.....", "name": "", "is_accepted": false } ]
04dac368f1394e84f95fa9fa61593a62
i want to know about career and scope in biotech. or biochem. engg. in iit's. as the name suggests isn't odd for a maths student to switch over to biology because in the colleges like vit these branches are open for biology students.
askiitians.com
2021.25
[ { "text": "dear ankit, biotechnology is the application of biological organisms and materials produced by them to manufacturing and service industries such as therapeutics, diagnostics, pharmaceuticals, agriculture, horticulture, food and environment. it is an interdisciplinary science involving biology: microbiology, genetics, immunology etc. and technology: chemical, mechanical, electronic engg. upcoming specialization genetic engg biological fuel generation environmental biotech food & beverage tech biochemical engineering bioinformatics biocatalysis employment avenues in biotech: pharmaceutical companies food processing industry: dairy, brewery, cheese, baked products, artificial sweetener flavours & fragrances agricultural technology - high yield crops higher education e.g. post doc in the u.s. all the branches are good ,.. its all depend on your your interest .. please feel free to post as many doubts on our disucssion forum as you can. if you find any question difficult to understand - post it here and we will get you the answer and detailed solution very quickly. we are all iitians and here to help you in your iit jee preparation. all the best . regards, askiitians expert amit - it bhu", "name": "", "is_accepted": false } ]
6ccd69cc9c85806507c111bb3d6734f1
n identical cells each of emf e and internal resistance r are joined in series to form a closed circui. the potential difference across any one cell is
askiitians.com
2021.31
[ { "text": "dear student, applying kirchoff’s voltag law to the whole circuit gives hence potential difference across each battery =", "name": "", "is_accepted": false } ]
b5f1e8b0b517cd129170b418791fbe18
co-ordinates of four points a,b,c and d are (0,-1), (-1,2), (15,2) and (4,-5) respectively. find the ratio in which line segment ac divides the line segment bd internally
askiitians.com
2021.21
[ { "text": "try to use section farmula and slope of i think this will help u to get u from it if it is help to get ans then approve it", "name": "", "is_accepted": false }, { "text": "try to use section farmula and slope of i think this will help u to get u from it if it is help to get ans then approve it", "name": "", "is_accepted": false } ]
789fef80c1e646b8c25c674846ce56b0
auxin was isolated by thiamann in 1935 from bryophytes algae fungi pteridophytes
askiitians.com
2021.43
[ { "text": "hello student correct answer is 3. fungi pbr322 is a plasmid which has gene coding for enzyme for enzyme for modifying ampicillin and tetracycline both.", "name": "", "is_accepted": false } ]
d463023348aa7e3db99dcc8d1bb0fe44
actinide have greater tendency to form complexes as compared to lanthanide. explain
askiitians.com
2021.43
[ { "text": "dear prem their ions are smaller and have high charge . so, they can form the complex easily . hope it clears regards kindly approve", "name": "", "is_accepted": false } ]
0f4164dd7214db7eec86771b7da6c5fe
a source of sound operates at 2.0 khz, 20 w emitting sound uniformly in all directions. the speed of sound in air is 340 m/s and the density of air is 1.2 kg/m3. (a) what is the intensity at a distance of 6.0 m from the source? (b) what will be the pressure amplitude at this point? (c) what will be the displacement amplitude at this point ?
askiitians.com
2021.31
[ { "text": "a) here given v baseair = 340 m/s., power = e/t = 20 w f = 2,000 hz, p = 1.2 kg/m^3 so, intensity i = e/t.a = 20/4πr^2 = 20 4 * π * 6^2 = 44 mw/m^2 (because r = 6m) b) we know that i p^2 base 0/2pv base air⇒ p base 0 = √1 * 2pv base air = √2 * 1.2 * 340 * 44 * 10^-3 = 6.0 n/m^2. c) we know that i = 2π^2 s^2 base 0 v^2 p^v where s base 0 = displacement amplitude ⇒ s base 0 = √l/π^2 p^2 pv base air putting the value we get s base g = 1.2 * 10^-6 m", "name": "", "is_accepted": false } ]
cbe1f4ae2df6e7abdab62828e829fd31
how many eggs can be present in an embryo sac and how many embryo sacs can be present in an ovule?
askiitians.com
2021.25
[ { "text": "1. usually one egg is present in a normal angiospermic embryo sac. 2. there is one embryo sac in each ovule. 3. the number of ovules in an ovary is different for different plant species. some plants like mango, wheat and rice have a single ovule in an ovary. some plants like hibiscus and peas have many ovules in an ovary. there can be a single ovary in a plant for example mango and apple. there can be many ovaries in a plant like raspberry and strawberry.", "name": "", "is_accepted": false } ]
01fdd898014b8dbefe0281b8aa8eecb8
the components in which the number of d pie p pie bonds are equal to those present in clo4-
askiitians.com
2021.25
[ { "text": "in the bond formation b/w two atoms for which one atom is having a vacant orbital and another is having a lone pair of electrons, then this type of bonding is called p(pie) - p(pie) or p(pie) - d(pie) bonding.", "name": "", "is_accepted": false } ]
08bd8d8b36a84e5e1a0384d536ed7c70
the frequency of revolution of electron in nth orbit is fn .if the electron mskes a transition from nth orbit to (n-1)th orbit ,then the relation between the frequency of emitted photon and fn will be?
askiitians.com
2021.31
[ { "text": "dear student frequency of electron in nth orbit is f is directly proportional to z^2 / n^3 if electron make transition from n to n-1 orbit , then emitted photon f' is directly proportional to z^2 (1/n^3 - 1/(n-1)^3) f'/f = 1 - n^3 / (n-1)^3 hope this helps", "name": "", "is_accepted": false } ]
31c5c7eacc1cefd1ebe3282f4688e596
why clouds do not attract towards earths surface due to gravity?
askiitians.com
2021.43
[ { "text": "gravity or gravitation is a natural phenomenon by which all things are brought (or gravitate ) towards one another - irrespective of size, i.e. stars, planets, galaxies and even light and sub-atomic particles. gravity has an infinite range, and it cannot be absorbed, transformed, or shielded against. gravity is responsible for the formation of structures within the universe (namely by creating spheres of hydrogen, igniting them with enough pressure to form stars and then grouping them together in to galaxies), as without gravity, the universe would be composed only of equally spaced particles. on earth, gravity is commonly recognized in the form of weight where physical objects are harder to pick-up and carry the 'heavier' they are. gravity is the weakest of the four fundamental interactions of nature. the gravitational attraction is approximately 10 −38 times the strength of the strong force (i.e. gravity is 38 orders of magnitude weaker), 10 −36 times the strength of the electromagnetic force , and 10 −29 times the strength of the weak force . as a consequence, gravity has a negligible influence on the behavior of sub-atomic particles, and plays no role in determining the internal properties of everyday matter (but see quantum gravity ). on the other hand, gravity is the dominant force at the macroscopic scale , that is the cause of the formation, shape, and trajectory (orbit) of astronomical bodies, including those of asteroids , comets , planets , stars , and galaxies . it is responsible for causing the earth and the other planets to orbit the sun; for causing the moon to orbit the earth; for the formation of tides ; for natural convection , by which fluid flow occurs under the influence of a density gradient and gravity; for heating the interiors of forming stars and planets to very high temperatures; for solar system , galaxy , stellar formation and evolution; and for various other phenomena observed on earth and throughout the universe.", "name": "", "is_accepted": false }, { "text": "clouds do not attract towards earths surface due to gravity because clouds are light weight and they are vapours", "name": "", "is_accepted": false }, { "text": "the buoyant force due to air on clouds is more than gravitational force , this is the reason!", "name": "", "is_accepted": false }, { "text": "the buoyant force acting on clouds by air has more magnitude compared to the weight of clouds. so clouds do not get pulled by earth due to gravity", "name": "", "is_accepted": false }, { "text": "clouds r lighter than the air that is present in the lower layers of the atmosphere hence they r not pulled downwrds n remain high up......my opinion", "name": "", "is_accepted": false } ]
9207817127c5cd49c2fbd7ac7155e964
warangal mech or surathkal comp or trichy eee.pls arrange them in the order which i shuld prefer them,i hav no particular interest in any branch,just care abt placements. thanks
askiitians.com
2021.43
[ { "text": "i should prefer you this sequence ac you have no branch interest so :- war mech> trichy eee> surathkal comp.", "name": "", "is_accepted": false } ]
4f751b01b072725a067c0f0db5912e86
its answer is given a why not d because parietal or oxyntic cells secrete pepsinogen
askiitians.com
2021.25
[ { "text": "dear student there are no attachment here , kindly attach the ques here where the answer is given as a . else write the full question so, that we can help you suitably regards", "name": "", "is_accepted": false } ]
bb46a814377dc0b87afe720733e8526f
the work of electric field done during the displacement of a negatively charged particle towards a fixed positively charged particle is 9j. as a result the distance between the charges has been decreased by half. what work is done by the electric field over the first half of this distance? ans: 3j how we are getting this answer plz explain
askiitians.com
2021.31
[ { "text": "given: kqq/(x/2) - kqq/x =9 where x is the intial distance. . . . or kqq/x = 9j to find is kqq/(3/4*x) - kqq/x .... as the rdistance b/w the particles becomes 3/4*x as the particle approches by a quater*x therefore it is kqq/3x =9/3 =3", "name": "", "is_accepted": false } ]
486b50f18f3f66942a2e5aff47d7834a
a charged particle enters a uniform magnetic field with velocity vector making an angle of 30 degrees with the magnetic field the particle describes helical trajectory of pitch x. the radius of helix is??
askiitians.com
2021.39
[ { "text": "first do the velocity components in x and y direcn. respectively. that are vcos30 and vsin30 m/s. now to cover the circular path motion, it uses the vertical velocity that is vsin30. hence radius = m(vsin30)/qb => mv/2qb = l (given) t = 2*pi*l/vsin30 => 4*pi*l/v pitch = vcos30 * t => 4*pi*l/v * vcos30 => 2root3 * pi * l meter", "name": "", "is_accepted": false } ]
1f47602928d038ea206b3a5f70392021
<p>i'm using o.p tondon for all the three subjects of chemistry is it ok or should i switch to mmaterial supplied by my institution i.e narayana institutes since i will be appearing for iitjee this year</p>
askiitians.com
2021.21
[ { "text": "dear risabh you can use both. but it will be better that you use one source only. in my opinion do o p tondon and practice previous years papers. all the best. akash goyal askiitiansexpert-iitd please feel free to post as many doubts on our discussion forum as you can. we are all iitians and here to help you in your iit jee preparation. win exciting gifts by answering the questions on discussion forum. so help discuss any query on askiitians forum and become an elite expert league askiitian. now you score 5+15 points by uploading your pic and downloading the askiitians toolbar respectively : click here to download the toolbar..", "name": "", "is_accepted": false }, { "text": "for inorganic and organic chemistry, go only for your institution study material. for physical chemistry, o.p.tondon is best. don't leave it for physical chem. for organic, lay more stress on ncert, your institute notes and your class notes. ncert is must . dont leave it . plz approve this answer if you like it.", "name": "", "is_accepted": false } ]
a698fe2bb10c19ca01a8e5c970cfd397
can you please explain what is gold number(protection of colloids)?
askiitians.com
2021.43
[ { "text": "the concept of gold number was introduced by zsigmondy .it is a term used in colloidal chemistry.it is defined as- ‘minimum amount of lyophilic colloid in milligrams which is required to prevent flocculation of 10ml gold sol by the addition of 1ml of 10% nacl solution.‘ the coagulation of gold sol is indicated by change in colour from red to blue when particle size just increases. more is the gold number,less is the protective power of lyophilic colloid as it means that amount required is more.for ex-gold number of gelatin is 0.005 – 0.1, for haemoglobin it is 0.03 – 0.07.", "name": "", "is_accepted": false } ]
b716304c2cfea26360466fc370cf0f82
given : a circle, 2x2 + 2y2 = 5 and a parabola, y2 = 4 underroot(5) x. statement − i : an equation of a common tangent to these curves is y = x +underroot(5) . statement − ii : if the line, y= mx +underroot(5)/m = + (m not equals to zero 0) is their common tangent, then m satisfies m4 − 3m2 + 2 = 0. (1) statement - i is true; statement -ii is true; statement-ii is not a correct explanation for statement-i (2) statement -i is true; statement -ii is false. (3) statement -i is false; statement -ii is true (4) statement -i is true; statement -ii is true; statement-ii is a correct explanation for statement-i choose and explain?
askiitians.com
2021.21
[ { "text": "ans is 1", "name": "", "is_accepted": false }, { "text": "statement 1 is right.", "name": "", "is_accepted": false } ]
46fb2db324c075691d85d47ff4d87a72
rationalize the denominator and find the type of surd in ∫2÷∫3+2
askiitians.com
2021.39
[ { "text": "", "name": "", "is_accepted": false }, { "text": "dear student is this sqrt(2) / sqrt(5) if this is then, mutilply by sqrt (5) in numerator and denominator sqrt (10) / 5", "name": "", "is_accepted": false } ]
5e1e4741013f77ef774a86adc79160ad
kindly explain this question to me, a horizontal force of 10n is necessary to just hold a block stationary against a wall . the coefficient of friction between the block and the wall is 0.2. the weight of the block is? my doubt is why cant i equate 10n =umg?
askiitians.com
2021.43
[ { "text": "imagine a 3d figure of the cube attached with the wall. here, direction of the following forces are-mg=-jfriction = jhorizontal force = -kso here, un = mg, where n=10 newton", "name": "", "is_accepted": false } ]
4bb9ab1c3349f6c94654b6fb509cdd8a
when an additional resistance is connected in series with a voltmeter, the range of the voltmeter becomes 100 times its initial value. find the resistance of the voltmeter.
askiitians.com
2021.21
[ { "text": "i*(g+s) = v g+s is total resistanve of voltmeter. for 100 v i*100r = 100v so resitance would be too 100 times.", "name": "", "is_accepted": false } ]
dbe4e000d925375d9612db6147e886e0
the pyrex glass mirror in the telescope at the mount palomar observatory (the hale telescope) has a diameter of 200 in. the most extreme temperatures ever recorded on palomar mountain are - 10°c and 50°c, determine the maximum change in the diameter of the mirror.
askiitians.com
2021.31
[ { "text": "diameter =d=200 inc change in temperature = t=50 ° -(-10 ° ) = 60 °c cofficient of expansion for pyrax glass= =3.2×10^-6/c ° formula: l= t× ×d =60 °c × 3.2×10^-6/c °× 200 inc =38400 × 10^-6 inc = 0.0384 inc so, maximum increase in diameter is 0.0384 inc and total diameter after increase in temperature is = 200inc + 0.0384inc = 200.0384 inc", "name": "", "is_accepted": false } ]
e6bec83ef4898d3e00fecdcf7e25c6d6
sustentacular cell• are found in { 1) brain of rabbit and are concerned with memory (2) liver of vertebrates and are secretory (3) kidney of frog and are excretory ( 4) testis of rabbit and are nutritive.
askiitians.com
2021.25
[ { "text": "dear student... sustentacular cells are found in testis of rabbit. sertoli cells are a type of sustentacular cells, it provides nutrition to sperms... with regards, mahima (askiitians forum expert)", "name": "", "is_accepted": false } ]