Spectral distribution energy in the black body radiation spectrum | explain Wien’s displacement law

3.A] Discuss the spectral distribution energy in the black body radiation spectrum and hence explain Wien’s displacement law.

Answer:-

Spectral distribution of energy in thermal radiation

Black Body radiation spectrum :

1. The energy density increases with wavelength then takes a maximum value E_m for a particular wavelength λ_m and then decrease to a value almost zero for longer wavelengths. Hence the energy distribution in the spectrum is not uniform.

Wien’s distribution law