List of top Physics Questions asked in KEAM

A block is tied to a string of length 98 cm and is rotated in a horizontal circle. Find the angular velocity if the centripetal acceleration \( a = g \).
When a rotating disc suddenly shrinks in radius, what happens to the angular velocity \( \omega \)?
Relation between Azimuthal quantum number and magnetic quantum number
A rod of length 0.5 m moves with a velocity of 3 m/s in a perpendicular magnetic field of strength 2 T. Find the emf induced across its ends.
Water flows through a pipe with velocity \( V_1 = 3 \, \text{m/s} \) where the area of the pipe is \( A_1 \). What is the velocity \( V_2 \), where the diameter of the pipe is half of that at area \( A_1 \)?
The center of mass of a rod of length \( l \) is at a distance ______ from one end of the rod.
For an ideal gas of molar mass \( M \), the slope of the graph between the rms speed \( V \) and \( \sqrt{T} \) where \( T \) represents the temperature is...
Given: \[ \frac{197}{96} X \to \frac{197}{95} Y + Z + V \quad \text{what is Z?} \]
A solid sphere, hollow sphere, and solid cylinder start sliding from an inclined plane without rolling. Then the ratio of time taken by them to reach the ground is?
Find the resistance required to be connected to a galvanometer of resistance \(100 \, \Omega\) with a full scale deflection of 1mA into a voltmeter of range 1V.
Electrostatic force is maximum when charge \( Q \) is placed at ------?
The inward electric flux through a closed surface is \( 6 \times 10^{-5} \) and the outward flux is \( 3 \times 10^{-5} \). Then the total charge enclosed is?
\( M^0 L T^{-1} \) is the dimension of ___________?
A body of mass 0.8kg moves with velocity \( v = 2x^2 + 2 \, \text{m/s} \). What is the work done during its motion from \( x = 0 \) to \( x = 2 \, \text{m} \)?
A body of mass 0.8kg moves with velocity \( v = 2x^2 + 2 \, \text{m/s} \). What is the work done during its motion from \( x = 0 \) to \( x = 2 \, \text{m} \)?
Relations between the speed of X-ray, gamma-ray, and UV rays when they travel in a vacuum.
In an equilateral triangle with each side having resistance \( R \), what is the effective resistance between two sides?
How can we decrease the effective capacitance of a parallel plate capacitor?
A cylindrical vessel contains 16 kg at 1 atm. A certain amount of substance is taken out so that pressure becomes 0.7 atm. Find the amount taken out (in kg).
Which of the following statement is true?
Work done on splitting a spherical drop into 8 droplets?
Wave nature of light can be used to explain which phenomenon?
What phenomenon is explained by the wave nature of electromagnetic radiation?
If the half-life of \( D \) is 1500 years and \( B \) is 2000 years, what is the mean lifetime?
Relation between the drift velocity and an electric field is ----?