List of top Physics Questions asked in KEAM

An object having a velocity of 5 m/s is accelerated at the rate 2 m/s\(^2\) for 6s. Find the distance travelled during the period of acceleration.
The resistor \( R_1 = 30 \, \Omega \) and \( R_2 = 10 \, \Omega \) are connected in parallel to a 20 V battery. Find the heat developed in the resistor \( R_1 \) in one minute
If power = 150 kW, torque = 100 Nm, find the angular velocity \(\omega\).
The quantity which has the same dimensions as that of gravitational potential is
A vehicle moving at 36 km/hr is to be stopped by applying brakes in the next 5 m. If the vehicle weighs 2000 kg, determine the average force that must be applied on it.
The velocity and acceleration of a particle performing simple harmonic motion have a steady phase relationship. The acceleration shows a phase lead over the velocity in radians of
A particle of mass m and charge q with an initial velocity v is subjected to a uniform magnetic field B along the vertical direction. The particle will
When a magnetic field is applied on a stationary electron, it
Consider a convex lens made of material of refractive index \( n = \frac{3}{2} \) and radius of curvature \( R \). What is the relation between focal length and radius?
A pure inductor of inductance \( 0.1 \, \text{H} \) is connected to an AC source (of rms voltage 220 V and angular frequency 300 Hz). The rms current is
In YDSE, when light of wavelength 700nm is used, a fringe width of 0.5mm is obtained. What happens when light of wavelength 500nm is used?
If \( \vec{F} \) and \( \vec{S} \) represent force and displacement respectively, then which of the following statements is true:
What happens to a ferromagnetic material when its temperature is raised above Curie temperature?
Magnitude and direction of acceleration changes for:
If current through a single circular loop of radius 10 cm produces a magnetic field of \( B \, \text{Tesla} \) at the centre, what is the current through the loop?
A couple can result in which type of motion:
Which force holds the nucleons together in the nucleus of the atom?
If the de Broglie wavelength of \( \alpha \)-particle and proton are equal, then the momentum \( P \) and kinetic energy \( E \) are related as:
A body starting from rest moves with a constant acceleration of \( 2 \, \text{m/s}^2 \). What is the distance covered by the body in the interval between 5 s and 6 s?
Two lenses, one of focal length 20 cm and another of power 4D are placed together, what is the effective power of the combination?
A constant force acts on a body at rest, resulting it to move with constant acceleration. If power relates to time as \( P \propto t^n \), what is the value of \( n \)?
If two planets A and B have their densities in the ratio 2:1 and radii in the ratio 1:2, what will be the ratio of escape velocities from their surfaces?
For an elastic collision
Transformer core is laminated because:
For an elastic collision