16 tuning forks are arranged in the order of increasing frequencies. Any two successive forks give 8 beats per sec when sounded together. If the last fork gives the octave of the first, then the frequency of the first fork is-
Text Solution
Verified by ExpertsThe correct answer is:
A
f 1 f 2 f 3 ......... f 151 , f 16
a, a × d, a × 2d. a + 15d
2a = (a+15d)
a = 15d
d = 8
a = 15 × 8 =120Hz
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