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Forty one tuning forks are arranged in i...

Forty one tuning forks are arranged in increasing order of frequencies such that every fork gives 5 beats with the next. The last fork has a frequency that is double the frequency of the first fork. The frequency of the first fork is

A

400 Hz

B

210 Hz

C

200 Hz

D

205 Hz.

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The correct Answer is:
C
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