Q9 of 36 Page 105

A string of mass 2.5 kg is under a tension of 200 N. The length of the stretched string is 20.0 m. If the transverse jerk is struck at one end of the string, the disturbance will reach the other end in

Given,

The tension in the string (T) is 200 N


Mass of the string = L = 2.5 kg


The length of the stretched string = 20.0 m


Now the mass per unit length of the string is given by μ,



The velocity (v) of transverse wave of the string is given by the relation;



So, the time taken by the disturbance to reach the end of the string,



Hence option B is the correct answer.

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