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in Physics by (71.1k points)

A set of 24 tuning forks is arranged in a series of increasing frequencies. If each fork gives 4 beats/s with the preceding one and the last sounds the octave of the first, find the frequencies of the first and the last forks. 

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If f be the frequency of first fork, then frequency of last fork will be 

f' = f + (24 - 1) x 4

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