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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

4

B

3

C

2

D

1

Text Solution

Verified by Experts

The correct Answer is:
C
`v-1& v to 1 Beat`
`v+1& v to 1 Beat`
`v+1& v-1 to 2 Beat`
So, There will be 2 beats per sec.
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