JEE Physics - MCQ Practice Questions

Three objects with masses 1 kg, 2 kg, and 3 kg are connected in a straight line by rigid massless rods. The center of mass from the 1 kg mass is at distance:

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

A solid sphere rolls without slipping down an incline of angle θ. The acceleration of center of mass is:

The coefficient of restitution between two colliding balls is 0.8. If they approach with velocities 5 m/s and 3 m/s, the relative velocity of separation is:

A hollow sphere and solid sphere of equal mass roll down the same incline without slipping. Which reaches the bottom first?

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:

Two particles have equal kinetic energies but different momenta. Particle A has momentum p_A and particle B has momentum p_B. If m_A > m_B, then:

A particle experiences a force F = 2i + 3j (N) and displacement s = 4i + 6j (m). The work done is:

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

A uniform rod of mass M and length L is pivoted at one end. The moment of inertia about the pivot is:

A body is projected vertically upward with velocity 40 m/s. If g = 10 m/s², what is the maximum height reached?

A block of mass 5 kg is placed on a frictionless inclined plane at 30°. What is the acceleration down the plane? (g = 10 m/s²)

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 particle moves with constant velocity v = 5 m/s in a circular path of radius 10 m. What is its centripetal acceleration?

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

What is the moment of inertia of a uniform disc of mass M and radius R about an axis perpendicular to the disc passing through its center?

A block slides down a frictionless incline of height 5 m. What is its speed at the bottom? (g = 10 m/s²)

A 3 kg ball is thrown horizontally from a height of 20 m with initial velocity 15 m/s. What is its horizontal displacement when it hits the ground? (g = 10 m/s²)

Two balls of equal mass collide elastically in a 1D head-on collision. Ball A has velocity 5 m/s and Ball B is at rest. After collision, what is Ball A's velocity?

A car rounds a horizontal curve of radius 100 m at 20 m/s. What minimum coefficient of friction is needed to prevent skidding? (g = 10 m/s²)