A set of 56 tuning forks is arranged in series of increasing frequencies.If each fork gives 4 beats with preceding one and the f

A set of 56 tuning forks is arranged in series of increasing frequencies.If each fork gives 4 beats with preceding one and the frequency of the last in twice that of first ,then frequency of the first fork is
A. ` 220 Hz `
B. ` 110 Hz `
C. ` 224 Hz `
D. ` 448 Hz`

A set of 56 tuning forks is arranged in series of increasing frequencies.If each fork gives 4 beats with preceding one and the frequency of the last i

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