Physics - Sound Wave Question with Solution | TestHub

Four harmonic waves of equal frequencies and equal intensities${\mathrm{I}}_0$have phase angles$0,\frac{\mathrm{\pi }}{3},\frac{2\mathrm{\pi }}{3}$and$\mathrm{\pi }$. When they are superposed, the intensity of the resulting wave is$\mathrm{n}{\mathrm{I}}_0$. The value of$\mathrm{n}$is