Waves

JEE Main level, single correct, medium

123 of 142

Question 123 of 142

Three sound waves of equal amplitudes have frequencies (v−1),v,(v+1)(v-1), v,(v+1). They superpose to give beats. The number of beats produced per second will be

Show answer and solution

Answer: (C) 2

(3)\quad(3)
Maximum number of beats
=v+1−(v−1)=2=v+1-(v-1)=2

JEE Main question paper PDF

Open a shift to read the full paper on this page, or download it.

JEE Main 2025 Apr 2 Shift 1 question paper

Open Download PDF

Opening paper…

Explain it as a whiteboard videoStep-by-step, in Hinglish or English. Your first video needs no login.Solved it on paper but got it wrong?Upload a photo of your working. Mistake Doctor marks the exact line that broke.
See it move: Standing waves on a string simulationDrag the sliders and watch the numbers in this question change.

More Physics practice

JEE Main Physics practice question on Waves (Beats), with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.