A stretched wire of length 1.2 m is fixed at both ends. A transverse wave of speed 300 m/s is propagated along the wire and forms a stationary wave.

A stretched wire of length 1.2 m is fixed at both ends. A transverse wave of speed 300 m/s ispropagated along the wire and forms a stationary wave. In a certain mode of vibration, the distancebetween successive nodes 0.40 m.a) What is the frequency for this mode?b) What lower resonant frequencies are possible?

The resonant frequencies for a stretched string are given by where n =1,2,3 and so onL = length of the string = 1.20 m The two lower resonant frequencies are 125 Hz and 250 Hz