M=σT4，To express the amount of energy an object radiates, where M=total radiant exitance from the surface of material, σ=Stefan-Boltzmann constant,5.6697*10-8 Wm-2 K-4
M=σT4，To express the amount of energy an object radiates, where M=total radiant exitance from the surface of material, σ=Stefan-Boltzmann constant,5.6697*10-8 Wm-2 K-4