Question

16 tuning forks are arranged in increasing order of frequency. Any two consecutive tuning forks when sounded together produce 8 beats per second. If the frequency of last tuning fork is twice that of first, the frequency of first tuning fork is

Answer 1

Answer:120

Explanation:

a+(n-1)d = a (subscript)n

F1 + (16 - 1)8 = 2F1

F1 = 120