List of top Physics Questions asked in KEAM

The power dissipated by a particle with constant force and constant acceleration is proportional to the:
Band gap energy of Si is:
If \( \frac{C_p}{C_v} \) is unity for a process, \( PV^{\gamma} = \text{constant} \), then the process is:
If fringe width obtained in a YDSE is 1.3mm. If the whole system is dipped in a liquid of refractive index 1.3, then the new fringe width will be:
To have the same RMS value as that of hydrogen at 30K, what will be the temperature of the oxygen molecule?
Which of the following is incorrect?
The ratio of frequency of the 3rd mode of vibration for the closed organ pipe and the open pipe of length \( L \)?
If a bar magnet is doped into a circular ring placed horizontally, then what change will happen?
Acceleration of the freely falling metal rod in a cycling ring?
What is the path followed by a charge entering a uniform magnetic field with its initial velocity along the direction of the magnetic field?
Three forces are acting on a particle in which \( F_1 \) and \( F_2 \) are perpendicular. If \( F_1 \) is removed, find the acceleration of the particle.
An equiconvex lens of power P is cut perpendicular to its principal axis, into 2 equal parts, power of each part?
Find the pressure on an air bubble of radius \( r \) at a height \( h \) from the surface of the water.
What is the work done to stretch a string?
What is the angle between the current and the magnetic field if a conductor carrying 2A current placed in a magnetic field of 4T experiences a force of 10N?
When blue light is incident on metal surface, photoelectrons are emitted. When green light is incident, no photoelectrons are emitted. What is the number of photoelectrons emitted when yellow light is incident?
When a body is dropped from height H, the time taken to reach the ground is T. What is the time taken to reach height H/2 from the ground?
What is the ratio of gyration of ring and disc?
Which of the following is true in an SHM?
Metal in Wilkinson's catalyst?
A body starts from rest and moves with an acceleration of \(2 \, \text{m/s}^2\) and comes to rest with a retardation of \(2 \, \text{m/s}^2\). Find the distance travelled?
A coil of length \(l\) and area of cross-section \(A\) has resistance \(R\). If the length is increased to 3 times and area decreases to \(A/3\), then the new resistance is:
A lift having mass 1000kg moves upward against a frictional force of 2000N. Power given by motor is 36000W. What is the velocity of the lift?
Relation between \(C_p\), \(C_v\) and \(R\)
If the threshold wavelength of a metal is in the green light region, then which of the following radiation cannot cause emission of electrons from metal?