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Two tuning forks P and Q are vibrated to...

Two tuning forks P and Q are vibrated together. The number of beats produced are represented by the straight line OA in the following graph. After loading Q with wax again these are vibrated together and the beats produced are represented by the line OB. If the frequency of P is 341 Hz, then frequency of Q will be

A

341 Hz

B

338 Hz

C

344 Hz

D

348 Hz

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