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Beats are produced when two sound waves ...

Beats are produced when two sound waves given by `y_(1) = A sin 200 pi t and y_(2) = A sin 210 pi t` are sounded together. How many beats are produced/sec?

A

3

B

4

C

5

D

6

Text Solution

Verified by Experts

The correct Answer is:
C
`y_(1) = A sin (200 pi t) = A sin (2pi n_(1) t)`
`:. n_(1) = 100 Hz` Similarly, `n_(2) = 105 Hz`
`:.` No. of beats/sec = 5
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