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Two vibrating tuning fork produce progre...

Two vibrating tuning fork produce progressive waves given by `y_(1) = 4 sin 500 pi t` and `y_(2) = 2 sin 506 pi t`. Number of beats produced per minute is :-

A

3

B

360

C

180

D

60

Text Solution

Verified by Experts

The correct Answer is:
C
`f_(1)=(500pi)/(2pi)=250 ,f_(2)=(506)/(2pi)=253`
`:. Delta f=3s^(-1)=3xx60 "min"^(-1)=180 "min"^(-1)`
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