Practice Test - Physics 16 for JEE & BITSAT Exams

Question 1

In a series resonant LCR circuit, the voltage across R is 100 volts and R = 1 kΩ with C = 2 μF. The resonant frequency ω is 200 rad/s. At resonance the voltage across L is

Question 2

An energy source will supply a constant current into a load of its internal resistance is

Question 3

A photon of frequency f causes the emission of a photoelectron of maximum kinetic energy E_K from a metal. If a photon of frequency 3f is incident on the same metal, the maximum kinetic energy of the emitted photoelectron

Question 4

Two point charges + 8q and - 2q are located at x = 0 and x = L respectively. The location of a point on the x axis at which the net electric field due to these two point charges is zero is

Question 5

A parallel plate capacitor is made by stacking n equally spaced plates connected alternatively. If the capacitance between any two adjacent plates is C then the resultant capacitance is

Question 6

The escape velocity for a body projected vertically upwards from the surface of earth is 11 km/s. If the body is projected at an angle of 45° with the vertical, the escape velocity will be

Question 7

A block of mass m is placed on a surface with a vertical cross section given by y = x³/6. If the coefficient of friction is 0.5 the maximum height above the ground at which the block can be placed without slipping is :

Question 8

A uniform narrow tube is bent into a circle of radius R and it lies in a vertical plane. Two liquids of equal volume and having densities ρ and σ (ρ > σ) fill the half tube. θ is the angle as shown in figure. Then

Question 9

A particle is moving with velocity

, where K is a constant. The general equation for its path is

Question 10

The position of a particle moving along the x-axis is given by x = 3t² – t³, where x is in m and t, is in seconds. consider the following statements :
(i) Displacement of the particle after 4 seconds is 16 m.
(ii) Distance traveled by the particle for 4 seconds is 24 m.
(iii) Displacement of the particle after 4 seconds is –16 m.
(iv) Distance covered by the particle for 4 seconds is 22 m.
Select the correct alternative