Physics - Unit & Dimension Question with Solution | TestHub

Stefan's law is $E=\sigma (T^4)$ $\Rightarrow$ $\sigma =\frac{E}{T^4}$

where, $E=$ $\frac{\text{Energy}}{\text{Area}\times \text{Time}}$ $=\frac{\text{Watt}}{{\mathrm{m}}^{\text{2}}}$

$\sigma =\frac{\text{Watt-}{\mathrm{m}}^{-2}}{{\mathrm{K}}^4}=\mathrm{W} {\mathrm{m}}^{-2} {\mathrm{K}}^{-4}$