A sonometer wire when vibrated in full length has frequency n. Now, it is divided by the help of bridges into a number of segments of lenths `l_(1),l_(2),l_(3)…` when vibration these segments have frequencies `n_(1), n_(2), n_(3),,,` Then, the correct relation is

Options

A. `n=n_(1)+n_(2)+n_(3)+..........`
B. `n^(2)=n_(1)^(2)+n_(2)^(2)+n_(3)^(2)+..........`
C. `1/n=1/n_(1)+1/n_(2)+1/n_(3)+..........`
D. `1/sqrtn=1/sqrtn_(1)+1/sqrtn_(2)+1/sqrtn_(3)+..........`

Answer

c