Question

5 The frequency of the fundamental mode of transverse vibration of stretched wire 1000mm long is 200Hz, when the wire in shortened to 500mm at the same tension what is the fundamental frequency. a). 100Hz b) 150HZ d) 400Hz 200Hz​

Answer 1

Answer:

Frequency (n) =1/2L under root T/m so from This N1L1=N2L2 so 200*1000=N2*500 so from this N2=400Hz