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A tuning fork sounded together with a tu...

A tuning fork sounded together with a tuning fork of frequency 256 emits two beats. On loading the tuning fork of frequency 256, the number of beats heard are 1 per second. The frequency of tuning fork is

A

257

B

258

C

256

D

254

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The correct Answer is:
D
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ERRORLESS -WAVES AND SOUND-Beats
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