JEE Physics - MCQ Practice Questions

A uniform rod of length L is suspended vertically from one end. Its center of mass falls from height L/2 to height 0 when released. The velocity of COM when it reaches bottom is:

A body experiences two perpendicular forces of 3 N and 4 N. The resultant acceleration is 2 m/s². The mass is:

A particle moves in a vertical circle of radius r. At the highest point, the minimum speed needed to maintain contact is:

Two identical springs with spring constant k are connected in series. The effective spring constant is:

A 2 kg block compresses a spring by 0.1 m and is released. If spring constant is 1000 N/m, the maximum velocity attained is:

A uniform ladder of mass M leans against a frictionless wall at angle 60° with ground. The minimum coefficient of friction at ground is:

A gyroscope has angular momentum L. If a torque τ is applied perpendicular to L, the angular velocity of precession is:

Two masses m₁ = 3 kg and m₂ = 2 kg are connected by a light string over a pulley. When released, the acceleration is:

A ball of mass 0.5 kg moving at 10 m/s collides with a stationary ball of equal mass. If collision is perfectly elastic, the velocities after collision are:

A planet has mass M and radius R. The escape velocity from its surface is v_e. If a new planet has mass 8M and radius 2R, its escape velocity is:

A block slides down an inclined plane of angle θ and length L. If friction coefficient is μ, the velocity at bottom is:

A wheel rotating at 100 rpm is brought to rest by applying brakes for 10 seconds. The angular deceleration is:

A particle undergoes simple harmonic motion with amplitude A and period T. The maximum velocity is:

A particle moving in circular path has centripetal acceleration a_c and tangential acceleration a_t. The magnitude of total acceleration is:

A pendulum with length L is displaced to make angle θ with vertical and released. The velocity at lowest point (for small angles) is approximately:

A car of mass 1500 kg takes a horizontal circular turn of radius 50 m at 54 km/h. The centripetal force required is:

The potential energy of a particle is U = x² - 2x. The force on particle is:

Two objects of masses m₁ = 2 kg and m₂ = 3 kg are connected by a light string over a pulley. If released from rest, what is their acceleration? (g = 10 m/s²)

A 2 kg mass attached to a spring (k = 200 N/m) oscillates on a frictionless surface. What is the period of oscillation?

A crate is pushed on a horizontal floor with a coefficient of kinetic friction μₖ = 0.3. If the applied force is 60 N and mass is 15 kg, what is the acceleration? (g = 10 m/s²)