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56 tuning forks are so arranged in serie...

56 tuning forks are so arranged in series that each fork gives 4 beats per second with the previous one.The frequency of the last fork is three times that of the first.The frequency of the fork is

A

52 Hz

B

56 Hz

C

60 Hz

D

110 Hz

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The correct Answer is:
B
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TARGET PUBLICATION-WAVE MOTION -MCQ 7.1
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