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A tuning fork of unknown frequency produ...

A tuning fork of unknown frequency produces 4 beats per second with another fork of frequency 288 cps. A little wax is placed on the unknown fork and it then produces 2 beats per second. The unknown frequency 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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ALLEN-WAVES AND OSCILLATIONS-Part-1(Exercise-05)[A]
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