-
which of these courses is good and why? Electronics or Electrical @ IT-BHU CSE/Electrical @ new IITs like Bhubhaneshwar/Jaipur/Gandhinagar/Punjab/Patna Electronics&Instrumentation @ BITS-Pilani Biotech @ IITM (don't have much ...
-
Five pirates and a monkey are shipwrecked on an island. The pirates have collected a pile of coconuts which they plan to divide equally among themselves the next morning. Not trusting the others, one pirate wakes up during th ...
-
find the no of positive integral solutions of \left[ \frac{x}{900}\right]=\left[ \frac{x}{901}\right] ...
-
Find the number of quadratic polynomials ax^2+bx+c which satisfy the following simultaneously: (a) a,b,c are distinct; (b) a,b,c\in \left\{ 1,2,3,4.............. 2009\right\} ; (c) (x+1) divides ax^2+bx+c ...
-
Find all positive integral solutions (a,b,c) to the equation (a+1)(b+1)(c+1)=2(abc + 1) ...
-
Find all positive integral solutions (a,b,c) to the equation (a+1)(b+1)(c+1)=2(abc + 1) ...
-
Find all positive integral solutions (a,b,c) to the equation (a+1)(b+1)(c+1)=2(abc + 1) ...
-
Find all positive integral solutions (a,b,c) to the equation (a+1)(b+1)(c+1)=2(abc + 1) ...
-
In 2006,there was a question in the JEE abt a u - v plot of a lens for finding focal length,the %age error or something similar was asked,how to find it?i have no clue! ...
-
1.A young's double slit expt is performed with white light,then A)The central fringe will be white B)There will not be a completely dark fringe C)The fringe next to the central will be red D)The fringe next to the central wil ...
-
1.Two strings A and B ,of same material and Ra=2Rb,are stretched by the same tension.Transverse waves travel thru these strings,find the ratio of their velocities va/vb 2.HC Verma in his book mentions velocities of 2 interfer ...
-
1.A 20N block is suspended by a spring balance.A beaker containing some water is placed on a weighing machine which reads 40N.The the spring balance is lowered inside the water such that the block is fully immersed.The spring ...
-
1.A body is suspended from a spring balance kept in a satellite,when orbit radius =R,reading = W1,when orbit = 2R,reading = W2 then A)W1=W2 B)W1W2 ans:(a) 2.Suppose a tunnel is dug thru the centre of the earth , and a particl ...
-
First term = 1 ,common diff = 4,which of the following represents the general term of the AP A) k^2(k+1)^2 + 3 B) k^2(k-1)^2 - 3 C) k^2(k+1)^2 + 2 D) k^2(k-1)^2 + 5 ...
-
Which of the foll statements are correct? A)Entropy of isolated system increases in an irreversible process B)Entropy of isolated system remains unchanged in a reversible process C)Entropy can never decrease D)ΔSsys and ΔSs ...
-
The angular velocity of the wheels of a scooter is directly proportional to the petrol input.The scooter is moving on a frictionless road with uniform velocity. If the input is increased by 50%,what is the change in linear ve ...
-
A string of negligible thickness is wound around a cylinder on a rough surface, several times.A man standing at a distance l from the cylinder holds one end of the string . THere is no slipping,find the length of string passi ...
-
\int_{0}^{\pi/3 }{(f'(3x)+f'''(3x))}cos3xdx=-5 find f"(0) +f"(\pi ) ...
-
find the value of \sqrt{3}(sec55+cosec55) + sec55 - cosec55 surprisingly ,the answer consists of only 1 term(irrational) ...
-
The rate of change of a double ordinate of x2=4by is proportional to its length,if the ordinate is varied frm the vertex,then the area traversed in time (ln4)/3k is ? (k is prop const) ...
-
find the condition on \lambda such that this eqn has real roots f(x) = \sqrt{3}\lambda x^4 - x^3 + 3\sqrt{3}\lambda According to the descartes rule,this eqn has either 2 or 0 roots,but i'm not getting any further frm here ...
-
Let a and b be 2 non collinear unit vectors . u=a-(a.b)b and v = a x b,then |v| = ? (in terms of u , a,b) ...
-
A.B=0 ; A.X = c,c≠0,A x X = B find X ...
-
A ray represented by a unit vector u ,is reflected by a plane mirror,whose normal is given by another unit vector v,the reflected ray is along unit vector w. Express w in terms of v,u ...
-
Let z_1,z_2,z_3 represent vertices A,B,C of a right angled triangle,right angled at C,if AC = 1 unit and (z_1-z_2)^2 = 2 (z_1-z_3)(z_2-z_3)(-1 + i ) ,find angle A ...
-
A skier moves with a constant speed of 6 m/s along a parabolic path y = x2/20 . Find the acceleration when he is at (10,5) ...
-
\int_{0}^{\infty}{\frac{x^{m-1}}{(1+x)^{m+n}}} = k\int_{0}^{\infty}{\frac{x^{n-1}}{(1+x)^{m+n}}} find k ...
-
A box contains n coins,If P(E_i) = k ( i(i+1)) for 1\leq i\leq n , where P(E_i) denotes the probability of the event that i out of n coins are biased, find k ...
-
in a stationary wave on a string,is the elastic potential energy max at the nodes?(thats what i thought till now until i saw fiitjee's solutions to a paper) ...
-
Normals are drawn from the pt P with slopes m_1,m_2,m_3 to the parabola y^2=4x .If Locus of P is a part of the parabola with m_1m_2 = \alpha , find \alpha ...
