A sonometer wire of length 1.20m, under a tension of 80N, has a linear mass density of 5.0×10−3kgm−1.
(a) Calculate the fundamental frequency of vibration of the wire.
(b) The tension is slowly increased to 200N without changing the length or the linear density. Determine the new fundamental frequency.
(c) Find the percentage increase in the fundamental frequency due to the change in tension.