The unit of intensity of a wave is $\mathrm{W} / \mathrm{m}^{\mathrm{\alpha}}$ ? What are dimenstons of intensity of wave?
(a) $\left[\mathrm{M} \mathrm{T}^{-3}\right]$
(b) $\left[\mathrm{A} \mathrm{ML}^{0} \mathrm{~T}^{-2}\right]$
(c) $\left[\mathrm{M}^{0} \mathrm{~L}^{-1} \mathrm{~T}^{-2}\right]$
(d) None of these
