Question

A string of length 1 m and mass 2 × 10⁻⁵ kg is under tension T. When the string vibrates, two successive harmonics are found to occur at frequencies 750 Hz and 1000 Hz. The value of tension T is _____newton.

Answer 1

l = 1 m, m = 2 × 10^–5 kg, T : Tension in the string.

\(\because\) Successive frequencies are being given

\(\therefore\) It is the case of both ends fixed.

Now,