List of top Physics Questions asked in KEAM

An unpolarised light is incident on a glass slab such that the reflected ray is totally polarised. If the angle of refraction is 30°,the refractive index of the glass is:

A system of ideal gas undergoes a thermodynamic process in which the initial pressure and volume are equal to the final pressure and volume. Let △Q is the heat supplied to the system,△W is the work done by the system and △U is the change in internal energy. The correct option is:

A train consists of an engine and 3 coaches, first coach is closest to the engine, third coach is farthest from engine. The train is moving with a constant acceleration a. The mass of each coach is M. The force exerted by the first coach on the second coach will be:

A ring of radius 1.75 m stands vertically. A small sphere of mass 1kg rolls on the inside of this ring without slipping. If it has a velocity of 10m/s at the bottom of the ring,then its velocity when it reaches the top is:(Take g=10 m/s²)

A Spherical ball is subjected to a pressure of 100 atmosphere. If the bulk modulus of the ball is 10¹¹ N/m²,then change in the volume is:

A uniform thin rod of mass 3kg has a length of 1m. If a point mass of 1kg is attached to it at a distance of 40cm from its center,the center of mass shifts by a distance of:

In the magnetic meridian of a certain plane,the horizontal component of earth's magnetic field is 0.36 Gauss and the dip angle is 60°. The magnetic field of the earth at location is:

An object at rest suddenly explodes into three parts of equal masses. Two of the away at right angles to each other with equal speed of 10 m/s. The speed of the just after the explosion will be:

A projectile is thrown at an angle 60° above the horizontal and with kinetic energy. The kinetic energy of the projectile at the highest point of its trajectory will be:

Consider a particle executing a simple harmonic motion. Let x,A,K and U are displacement,amplitude,kinetic energy and potential energy,respectively,of the particle at certain instant of time. If\(\frac{K}{U}\)=3,then \(\frac{x}{A}\) is:

A particle at rest starts from the origin with a constant acceleration a that makes an angle 60° with the positive y-axis. If its displacement along y-axis is 10m in time 2s,then the magnitude of a is:

The work done W is required by an agent to form a bubble of radius R. An extra amount of work △W is required to increase the radius by △R. If \(\frac{△R}{R}\)=1%,\(\frac{△W}{W}\) is:

A gun fires N bullets per minute. The mass of each bullet is 10g and every bullet travels With a speed of 600m/s. If the power delivered by the gun is 9000W,the value of N is: