JEE Physics - MCQ Practice Questions

A stone is thrown horizontally from height h with initial velocity u. Its horizontal range is x. If height is doubled and velocity doubled, new range is:

A block of mass m slides down from height h on a smooth incline. Final velocity is v. If height is doubled and friction coefficient μ is introduced, velocity becomes:

In an elastic collision between equal masses where one is at rest, the velocities after collision are:

A rotating body has moment of inertia I and angular acceleration α. The rotational kinetic energy increases at rate:

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 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?

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:

Two satellites orbit at radii r₁ and r₂ from Earth's center where r₂ = 4r₁. The ratio of their orbital periods T₁:T₂ is:

A wedge of mass M = 10 kg with angle 30° is on a frictionless surface. A block of mass m = 5 kg slides down the wedge. What is the acceleration of the wedge in the horizontal direction? (g = 10 m/s²)