List of top Questions asked in BITSAT- 2009

Solution of differential equation (dy)/(dx)+(y)/(x)= x
A person standing on the bank of a river observes that the angle subtended by a tree on the opposite bank is 60^. When he retreats 20 feet from the bank, he finds the angle to be 30^. The breadth of the river in feet is:
The value of ₓₒ₀((4ˣ-1)³)/(x²(1+3x)) is
For making good quality mirrors, plates of float glass are used. These are obtained by floating molten glass over a liquid metal which does not solidify before glass. The metal used can be
Interparticle forces present in nylon-66 are:
In a triangle ABC, C=90^, then (a²-b²)/(a²+b²) is equal to
A line segment has length 63 and direction ratios are 3,-2,6. If the line makes an obtuse angle with x-axis, the components of the line vector are
The equation of tangent to the curve y= x at the point (π,0) is
If (2 x- x+λ)/( x+ x-2)dx = A| x+ x-2|+Bx+C, then the ordered triplet (A,B,λ) is
The minimum value of the function y=x⁴-2x²+1 in the interval [-\frac12,2] is
The value of a in order that f(x)= x- x-ax+b decreases for all real values is
If a>0, b>0, c>0 are respectively the pth, qth, rth terms of G.P., then the value of the determinant vmatrix a & p & 1
b & q & 1
c & r & 1 vmatrix is
Find the value of 2⁻¹(1)/(5)+⁻¹(1)/(2)+2⁻¹(1)/(8)
The letters of the word TOUGH are written in all possible orders and the words are written out as in a dictionary. Then the rank of the word TOUGH is:
The value of x is maximum for
At 25°C and 1 bar which of the following has a non-zero Δ Hf^ ?
If the equilibrium constant of the reaction 2HI H₂ + I₂ is 0.25, then the equilibrium constant for the reaction H₂ + I₂ 2HI would be
One mole of an ideal gas at 300 K is expanded isothermally from an initial volume of 1 litre to 10 litres. The Δ E for this process is (R = 2 cal mol⁻¹ K⁻¹):
The truth table given below corresponds to the logic gate arrayc|c|c A & B & X
0 & 0 & 1
1 & 0 & 0
0 & 1 & 0
1 & 1 & 0 array
Nuclear energy released in fission since binding energy per nucleon is
A coil has resistance 30 ohm and inductive reactance 20 ohm at 50 Hz frequency. If an a.c. source of 200 volt, 100 Hz is connected across the coil, the current in the coil will be
A plano-convex lens of focal length 30 cm has its plane surface silvered. An object is placed 40 cm from the lens on the convex side. The distance of the image from the lens is
The instantaneous current from an a.c. source is i = 6\sin314t. What is the rms value of the current?
In case of a forced vibration, the resonance curve becomes very sharp when the
A pendulum bob carries a +ve charge +q. A positive charge +q is held at the point of support. Then the time period of the bob is (where L = length of pendulum, gₑₓtₑff = effective value of g):