A sound has frequency 500 Hz and velocity $300 \mathrm{~m} / \mathrm{s}$, the phase difference at a

Question

A sound has frequency 500 Hz and velocity $300 \mathrm{~m} / \mathrm{s}$,  the phase difference at a time interval of $10^{-3}$ seconds will be\

Professor PC Thomas Classes · Answer

First get $\lambda \cdot \lambda=\frac{\mathrm{v}}{\mathrm{n}}=\frac{300}{500}$ Then apply the formula $\varphi=\frac{2 \pi}{\lambda} x$ where $x$ is path difference and is phase difference.