Q.Explain energy distribution spectrum of a black body radiation in terms of wavelength.

The radiant energy a blackbody emits is not spread evenly across all wavelengths -- at any fixed temperature, plotting the radiant power per unit wavelength interval against wavelength produces a single-humped curve that rises from near zero at short wavelengths, reaches a maximum at a temperature-characteristic wavelength, and falls back toward zero at long wavelengths, with a longer tail on the long-wavelength side. As temperature increases, this curve's peak grows taller (more total energy radiated) and shifts toward shorter wavelengths, and the total area under the curve (representing total radiated energy) increases. …