List of top Physics Questions asked in KEAM

Which of the following is incorrect?
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 \(R\)
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?
Vibration of atoms and molecules produce electromagnetic radiation in the region of:
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:
The dimension of \( \lambda \times t \) (decay constant \(\lambda\) multiplied by time \(t\)) is:
What is the work done to stretch a string?
The force between two point charges separated by a distance \(d\) is \(F\). If one charge is moved away by a distance \(d\), then the new force is:
Find the pressure on an air bubble of radius \( r \) at a height \( h \) from the surface of the water.
The ratio of frequency of the 3rd mode of vibration for the closed organ pipe and the open pipe of length \( L \)?
Monochromatic light passing through a prism doesn't produce:
To have the same RMS value as that of hydrogen at 30K, what will be the temperature of the oxygen molecule?
What is the ratio of gyration of ring and disc?
Arrange the following in the order of conductivity: Na, Ag, Fe, Cu
If \(T\) and \(n\) are surface tension and coefficient of viscosity, if temperature increases, then:
If \( B = 400\sqrt{2} \sin(\omega t - kx) \), find the peak value of the magnetic field of the electromagnetic wave.
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?
Specific heat capacity of diatomic gas at constant volume:
The power dissipated by a particle with constant force and constant acceleration is proportional to the:
Energy dissipated per unit time by a wire of resistance \(2R\) connected to a 2V battery.
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?
Product of uncertainty in position (\(\Delta x\)) and uncertainty in velocity (\(\Delta v\)) has unit:
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?
Express the final answer to the proper number of significant figures: \[ 18.0 + 11.515 + 13.2 = \ldots \]