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50 tuning forks are arranged in increasing order of their frequencies such that each gives 4 beats/sec with its previous tuning fork. If the frequency of the last fork is an octave of the first, then the frequency of the first tuning fork is?

50 tuning forks are arranged in increasing order of their frequencies such that each gives 4 beats/sec with its previous tuning fork. If the frequency of the last fork is an octave of the first, then the frequency of the first tuning fork is? Correct Answer 196Hz

2v=v+49×4 v=196Hz.

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