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A source of sound with adjustable freque...

A source of sound with adjustable frequency produces 2 . beats per second with a tuning fork when its frequency is either 476 Hz or 480 Hz. What is the frequency of the tuning fork ?

A

`65 Hz`

B

`56 Hz`

C

`46 Hz`

D

`64 Hz`

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The correct Answer is:
B
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RESONANCE ENGLISH-SOUND WAVES-Exercise- 2 PART - I
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