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Beats are produced by two waves y(1) ...

Beats are produced by two waves
`y_(1) = a sin 2000 pi t`
and `y_(2) = a sin 2008 pi t`
The number of beats heard per second is

A

zero

B

one

C

four

D

eight

Text Solution

Verified by Experts

The correct Answer is:
C
`n_(1) = 1000Hz, n_(2) = 1004` Hz. Number of beats ` = 1004-1000 = 4Hz`
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