JEE Main 2024PhysicsWaves and SoundMediumNumerical

JEE Main 2024 — Waves and Sound Question with Solution

JEE Main 2024 (01 Feb Shift 1)

Question

A tuning fork resonates with a sonometer wire of length 1 m stretched with a tension of 6 N. When the tension in the wire is changed to 54 N, the same tuning fork produces 12 beats per second with it. The frequency of the tuning fork is _______ Hz.

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Show full solutionCorrect answer: 6
Correct answer
6

Step-by-step explanation

Frequency of sonometer wire is given by, f=12 LTμ

Therefore, f1=126μ f2=1254μ

Hence, f1f2=13 

Also it is given that, f2-f1=12

So, f1=6 Hz.

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About this question

This is a previous-year question from JEE Main 2024, 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.