JEE Physics - MCQ Practice Questions
Physics is where JEE ranks are usually won or lost, since a single conceptual slip changes the whole answer. Questions here span mechanics, rotational motion, thermodynamics, waves and oscillations, electrostatics, current electricity, magnetism, optics, and modern physics. Numerical problems carry full derivations so you can see which step you skipped, not just which option was right.
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A rectangular block of dimensions 10 cm × 20 cm × 30 cm is floating in water. Which orientation is most stable?
A 4 kg block on a rough horizontal surface experiences friction force f = 12 N when moving. If pushed with force 20 N, what is the kinetic energy after traveling 5 m from rest?
A 6 kg object is subject to two perpendicular forces: F₁ = 8 N and F₂ = 6 N. What is the magnitude of acceleration?
A ball is thrown vertically upward with velocity 30 m/s. At what time does it return to the ground level? (g = 10 m/s²)
Two blocks A (mass 3 kg) and B (mass 2 kg) are connected by a light string over a frictionless pulley. Block A is on a smooth horizontal surface and B hangs vertically. What is the acceleration of the system? (g = 10 m/s²)
A particle of mass m undergoes motion with velocity v(t) = 3t² + 2t (in m/s). What is the net force on the particle when t = 2 s, if m = 2 kg?