Question:
Two sources of sound $S_{1}$ and $S_{2}$ vibrate at same frequency and are in phase. The intensity of sound detected at a point $P$ as shown in the figure is $I_{0}$.
(a) If $\theta$ equals $45^{\circ}$, what will be the intensity of sound detected at this point if one of the sources is switched off?
(b) What will be the answer of the previous part if $\theta=60^{\circ}$ ?
Solution:
