As shown in the fig two loudspeakers are located at point A and B. Both are vibrating in phase at a frequency $\nu$ and $P_1$ and $P_2$ are their respective power. Point C lies on a line joining two loudspeakers at a distance of $d_1$ from A and $d_2$ from B. When both the speakers are switched on, what is the intensity $(inW/m^2)$ at point C? Take velocity of sound $300m{s}^{-1},$ frequency $\nu$ =100Hz, ${\text{d}}_1=1 m and d_2= 1.5 m, {\mathrm{p}}_1=8\pi W and {\mathrm{p}}_2=18\pi W.$ Also assume that loudspeakers behave like isotropic point sources: (emit sound uniformly in all directions)