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Two vibrating tuning forks produce progr...

Two vibrating tuning forks produce progressive waves given be `y_(1) = 4 sin 500 pi t` and `y_(2) = 2 sin 506 pi t` where t is in seconds number of beats produced per minute is ………..

A

60

B

3

C

369

D

180

Text Solution

Verified by Experts

The correct Answer is:
D
`omega_1 = 2pi f_1`
`omega_2 = 2pi f_2`
`500 pi = 2pi f_1 `
` 506 pi = 2pi f_2`
` f_1 = 250`
` f_2 = 253`
` f_2 = f_1 = 3` beats per sec and 3 x 60 = 180 beats per minute
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