`65` tuning forks are arranged in order of increasing frequency. Any two successive forks produce `4 beats//s`, when sounded together. If the last fork gives an octave of the first, the frequency of the first fork is

64 tuning forks are arranged in order of increasing frequency and any two successive forks give foor beats per second when sounded together. If the last fork gives the octave of the first, calculate the frequency of the latter.

N tuning forks are arranged in order of increasing frequency and any two successive tuning forks give n beats per second when sounded together. If the last fork gives double the frequency of the first (called as octave), Show that the frequency of the first tuning fork is f=(N-1)n .

16 tuning forks are arranged in the order of decreasing frequency. Any two successive forks gives 5 beats per second when sounded together. If the first tuning fork gives the octave of the last, then determine the frequency of the last fork.

Fifty-six tuning forks are arranged in order of increasing frequencies so that each fork gives 4 beats per second with the next one. The last fork gives the octave of the first. Find the frequency of the first.

Fifty-six tuning forks are arranged in order of increasing frequencies so that each fork gives 4 beats per second with the next one. The last fork gives the octave of the first. Find the frequency of the first.

25 tunning forks are arranged in series in the order of decreasing frequency. Any two successive forks produce 3 beats/sec. If the frequency of the first turning fork is the octave of the last fork, then the frequency of the 21st fork is

A set of 8 tuning forks is arranged in a series of increasing order of frequencies. Each fork gives 4 beats per second with the preceeding one and the last fork is an octave of the first .Find the frequency of the first fork.