List of top Physics Questions asked in KEAM

If the fundamental frequency of the stretched string of length 1 m under a given tension is 3 Hz, then the fundamental frequency of the stretched string of length 0.75 m under the same tension is:
A wave with a frequency of 600 Hz and wavelength of 0.5 m travels a distance of 200 m in a time of:
All real gases behave like an ideal gas at:
When heat is supplied to the gas in an isochoric process, the supplied heat changes its:
The stress required to produce a fractional compression of 1.5% in a liquid having bulk modulus of \( 0.9 \times 10^9 \, {Nm}^{-2} \) is:
The terminal velocity of a small steel ball falling through a viscous medium is:
The force of gravity is a:
The escape speed of the moon when compared with escape speed of the earth is approximately:
A flywheel ensures a smooth ride on the vehicle because of its:
The motion of a cylinder on an inclined plane is:
A particle is displaced from P \( (3i + 2j - k) \) to Q \( (2i + 2j + 2k) \) by a force \( \mathbf{F} = i + j + k \). The work done on the particle (in J) is:
A block of 50 g mass is connected to a spring of spring constant 500 Nm\(^{-1}\). It is extended to the maximum and released. If the maximum speed of the block is 3 ms\(^{-1}\), then the length of extension is:
Impending motion is opposed by:
Which one is an INCORRECT statement?
A ball is thrown vertically upwards with an initial speed of 20 ms\(^{-1}\). The velocity (in ms\(^{-1}\)) and acceleration (in ms\(^{-2}\)) at the highest point of its motion are respectively:
When a cricketer catches a ball in 30 s, the force required is 2.5 N. The force required to catch that ball in 50 s is:
If the initial speed of the car moving at constant acceleration is halved, then the stopping distance \( S \) becomes:
The angle between \( \vec{A} \times \vec{B} \) and \( \vec{B} \times \vec{A} \) is:
If the time period \( T \) of a satellite revolving close to the earth is given as \( T = 2\pi R^a g^b \), then the value of \( a \) and \( b \) are respectively (where \( R \) is the radius of the earth):
During the formation of p - n junction:
If \( E_c \) and \( E_v \) represent the energy of the conduction band and valence band, \( E_D \) represent the donor energy level, and the band gap in a n-type semiconductor, then the true relation among them is:
Out of the following pair of elements, identify isotones:
Plutonium nucleus undergoes fission with:
If the frequency of the incident light on a metal surface is increased by 10%, then the kinetic energy of the emitted photoelectrons is increased from 0.5 eV to 0.7 eV. Then the work function of the metal is:
The de Broglie wavelength associated with the electrons accelerated by a potential of 81 V is lying in the region of electromagnetic waves: