Physics - Wave on String Question with Solution | TestHub

The linear mass density $\mu =\frac{\text{mass}}{\text{length}}$. Given mass $m=15\text{ g}=0.015\text{ kg}$ and length $L=1.5\text{ m}$. So, $\mu =\frac{0.015\text{ kg}}{1.5\text{ m}}=0.01\text{ kg/m}$. The speed of a transverse wave on a string is $v=\sqrt{\frac{T}{\mu }}$. Given tension $T=64\text{ N}$.$$v=\sqrt{\frac{64\text{ N}}{0.01\text{ kg/m}}}=\sqrt{6400}=80\text{ m/s}$$