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Three sound waves of equal amplitudes ha...

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

A

`n`

B

2

C

1

D

`3n`

Text Solution

Verified by Experts

The correct Answer is:
C
`underset(1hz)(f_(1))underset(2hz)(f_(2))underset(3hz)(f_(3))`
`t=0 0 0`
`t=1 sec. 1//2 sec. 1//3 sec. T=1 sec. `
`f=1hz. Ans. (C )`
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