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.

N tuning forks are arranged in order of increasing frequency and any t

1.	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.
Answer» SOLUTION :`F,f+N, f+2n, ...f +(m-1)n` `f+(N-1)n=2f` `n=(f)/(N-1)` `(or) f=n(N-1)`