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A tuning fork arrangement (pair) produce...

A tuning fork arrangement (pair) produces `4 beats//sec` with one fork of frequency `288cps`. A little wax is placed on the unknown fork and it then produces `2 beats//sec`. The frequency of the unknown fork is

A

286 cps

B

292 cps

C

294 cps

D

288 cps

Text Solution

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The correct Answer is:
B
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