JEE Main 2014 — Waves and Sound Question with Solution
JEE Main 2014 (11 Apr Online)
Question
Two factories are sounding their sirens at 800 . A man goes from one factory to other at a speed of . The velocity of sound is . The number of beats heard by the person in one second will be:
Choose an option
Show full solutionCorrect option: D
Correct answer
D10
Step-by-step explanation
Given: Frequency of sound produced by siren,
Speed of observer,
Velocity of sound,
No. of beats heard per second ?
No. of extra waves received by the observer per second
No. of beats/ sec
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This is a previous-year question from JEE Main 2014, covering the Waves and Sound chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.