Site icon Noon Academy

A transverse wave is travelling on a string with velocity ‘ The extension in the string is ‘ . If the string is extended by , then the speed of wave along the string will be nearly (Hooke’s law is obeyed)
A.
B.
C. D.

contexto.120

Correct option is A.

\begin{array}{l} v=\sqrt{\frac{T}{m}} \\ \therefore \frac{\mathrm{V}_{2}}{\mathrm{~V}_{1}}=\sqrt{\frac{\mathrm{T}_{2}}{\mathrm{~T}_{1}}} \\ =\sqrt{1.5} \approx 1.22 \end{array}