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 transverse wave on a string has amplitude A, wavelength λ, and speed v. The maximum velocity of a particle is:
A progressive wave y = 10sin(100πt - 0.01πx) cm is given. The wavelength is:
In a resonance tube experiment, the first resonance length is l₁ and second is l₂. The end correction is approximately:
Two waves with intensities 4I and I interfere. The maximum intensity is:
Two coherent sources with intensity ratio 4:1 interfere. The maximum intensity in the interference pattern is:
A sound wave traveling in air at 340 m/s encounters a wall. The reflected wave interferes with the incident wave. At what distance from the wall is the first antinode?
Two speakers emit sound of wavelength 1 m with a phase difference of π radians. An observer is located 2 m from both speakers. The path difference at the observer's location is 0.5 m. The intensity at the observer's location will be:
A standing wave is formed on a string with 4 antinodes. The length of the string is 2 m. What is the wavelength?
A resonance tube experiment shows that the first resonance occurs at a length of 9 cm. The next resonance occurs at 27 cm. The end correction of the tube is approximately:
An observer moving at velocity v_o towards a stationary sound source of frequency f hears a frequency f'. The relationship is best represented by:
A wave travels through two media. In medium 1, its speed is 400 m/s and wavelength is 2 m. In medium 2, the speed is 600 m/s. The wavelength in medium 2 is:
A tuning fork of frequency 512 Hz is vibrating above a resonance tube filled with water. As water level is lowered, resonance first occurs at length 16 cm. The speed of sound is:
A wave pulse on a rope travels from a denser to a lighter medium (from thin to thick rope). The reflected pulse: