NEET UG PHYSICS MCQ: WAVES

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Application +4 | -1

Two open pipes of length L are vibrated simultaneously. If length of one of the pipe is reduced by y, then the number of beats heard per second will be. (if the velocity of sound is V and y < < L)

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Correct option: C

\frac{{Vy}}{{2L}}

Option C (

\frac{{Vy}}{{2L}}

) is correct because it represents the beat frequency calculated from the difference in frequencies of the two pipes.

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