cse • paper_1 • electrodynamics
[UPSC CSE 1987] Black Body Radiation (Q495, 20M)
Derive an expression for the mean energy \varepsilon of a Planck oscillator in thermal equilibrium with the surroundings. How does the ratio h\nu / kT vary as the temperature T varies from \leqslant h\nu / k to \leqslant h\nu / k, the symbols having the usual meanings?
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