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From resonance, i got my expected AIR in AIEEE 2012 as {25000-30000 (GEN)} marks: phy=38 che=44 mat=59 Which is the best college i can get ? Most preferably in cse ? Also what you mean by BIRLA INSTITUTE OF TECHNOLOGY (F) ? ...
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Let z and w be two complex numbers such that |z|=|w|=1 and |z+iw|=|z-iw|=2. then z= ...
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i haven't received the aieee hall ticket till now ....:( the last date given in the web site is 31/3/12 is there any body like me ??? do i have to post a letter to the authorities ? ...
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The state of hybridisation of central atom in POCl3 is : 4+ 1/2 (5-5)=4→sp3 ....can anyone explain that formula in bold letters.... ...
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i'm talking about the problem 8.5 (page 264) it is asked to find the species which do not show dispropotionation among ClO-,ClO2-,ClO3-,ClO4- . And also write reactions.... first Q is easy ....but how to write the reactions ? ...
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What all values should we know beforehand to make numericals easy? I mean....memorising values for (log2,log3,log5,...log11), (1/3,1/4,1/5,.......1/11),( 2 , 3 ,....) like that ?? ...
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2 persons are holding a rope of negligible weight tightly at its ends,so that it is horizontal. A 20kg weight is attached to the rope at the mid-point,which is now no longer horizontal. The minimum tension required to strengt ...
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Guys i can't understand/agree this statement.... pls help me...... Relative to an observer at rest in a medium the speed of a mechanical wave in that medium(v) depends only on elastic and other properties (such as mass densit ...
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Write a 2-digit number ab and the number obtained by reversing its digits i.e., ba. Find their sum. Let the sum be a 3-digit number dad.Find the values of a and d. ...
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How many ways can you put 10 sweets into 3 bags so that each bag contains an odd number of sweets? ...
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let S ≡ f(x,y) , |||x|-2|-1|| + |||y|-2|-1| = 1. If S is made out of a wire then the length of the wire required is? ...
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9.93/238.3 =0.04167 this is also from a fiijee solution..... how are they doing it so correctly and upto 5 decimal places? are they doing it by actual division??? Or are there some tricks to be used in doing division??? pls h ...
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I got this step from a FIITJEE solution..... antilog(15.593)=3.9*1015 how to do that???? (no data was not given in the question!) ...
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1)A cell Ag|Ag+||Cu2+|Cu initially contains 1M Ag+ and 1M Cu2+ ions. Calculate the change in cell potential after passage of 9.65A of current for 1 hour. 2)Calculate emf of the following cell at 25°C Pt,H2(3 atm)|HCl|H2(15 a ...
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Who can do this in min 4 different ways \lim_{x\rightarrow 0}\frac{tan^{-1}x-sin^{-1}x}{sin^{3}x} ...
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1) \lim_{x\rightarrow \frac{\pi }{2}} sec^{-1}(sin x) 2) \lim_{x\rightarrow 0}cos\frac{1}{x} 3) \lim_{x\rightarrow 0}(1+sinx)^{1/x^{2}} 4) Let f( x+y/2 ) = f(x)+f(y)/2 for all real x and y.If f'(0) = -1 and f(0) = 1,find f(2) ...
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Are the subjective questions (in the rankers study material) really necessary for IIT JEE? Or, can i ignore it ? And is there any thing like this which can be ignored safely if i am preparing for IITJEE (and lower) only? ...
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The thermal conductivity of graphite along an axis in the plane of hexagonal rings is A)exactly the same as along axis perpendicular to this plane B)is less than along an axis perpendicular to this plane C)is more than along ...
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1.pls explain these a)[-2x/pi]+1/2 = -([2x/pi]+1/2) b)-3≤|[x]|≤2 implies -2≤x<3 2. What is the formula to find number surjections from A to B? 3.If f"(x) = -f(x) and g(x) = f'(x) and F(x) = (f(x/2))2+(g(x/2))2 and gi ...
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Find range of the following functions 1. y = sin2x+sinx-1/sin2x-sinx+2 2. y = (tan-1x)2 + 2/√(1+x2) ...
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1,Prove for positive a,b,c (b≠1) , alogbc = clogba 2,In a small sweet shop people usually buy either one cake or one box of chocolate ,One day the shop sold 57 cakes and 36 boxes of chocolate,How many customers were there t ...
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Note : The question is NOT incorrect A and B are 2 points 30 m apart in a line on the horizontal plane through the foot of a tower lying on opposite sides of the tower,If the distances of the tower from A and B are 20 m and 1 ...
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1,Is the theorem of perpendicular axes only applicable for planar bodies? 2,Why detergents have small angles of contact? 3,Why in desert areas, the earth surface warms up quickly during the day and cools quickly at night? 4,C ...
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1)Two squares are chosen at random from the 64 squares of a chessboard The probability that they have a side in common is ___ Probability that they have just one vertex in common is ____ 2)If P(AUB)=P(A∩B), (a)P(A)=P(B) (b) ...
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How to find the centre of mass of an L shaped lamina formed by 3 squares of different masses? ...
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1)In any discrete series when all the values are not the same, Mean deviation___standard deviation (=,≤,≥,<,greater than) 2)A measure of dispersion is an indicator of the reliability of __________ (an average/variabili ...
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1)In an AP, Sn = n2p,Sk = k2p ; k,n,p are natural numbers and k≠n Sp = ? can we answer p2p just by seeing the pattern? 2) 1/1x2 + 1/2x3 + 1/3x4 +,,,,,,,,, to n terms 3)Sum of 9 AM's between 2 and 24 is _____ 4)If a,b,c be r ...
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1,limit (x-:0) is abbreviated as L0 L0f(x) = l , which is real, then a) L0f(x2) = l2 b) L0f( x/l ) = 1 c) L0f(2x) = 2l d) L0f(-x) = l 2,If La f(x) and Lag(x) exist finitely then an incorrect statement among the following a) L ...
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1+(2+3)+(3+4+5)+,,,,,,,,,, ...
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Nuclear density of iodine-125 atom is approx a)2 x 1015 g/cc b)2 x 1014 g/cc c)2 x 1015 kg/cc d)4 x 10-14 g/cc e)2 x 10-14 g/cc ...
