A string of mass 0.2 Kg is under a tension of 2.5 N . The length of the string is 2 m . A transverse wave starts from one end of the string. The time taken by the wave to reach the other end is

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Linear mass density of the string is given by $μ = \frac{m}{L}$

Substituting the given values:

$μ = \frac{0.2}{2} = 0.1 kg/m$

The speed of the transverse wave on the string is given by $v = \frac{T}{μ}$

$v = \frac{2.5}{0.1} = 25 = 5 m/s$

The time taken by the wave to reach the other end is $t = \frac{L}{v}$

$t = \frac{2}{5} = 0.4 s$

Answer: 0.4 s

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