Planck radiation formula

Planck radiation formula

[′pläŋk ‚rād·ē′ā·shən ‚fȯr·myə·lə]
(statistical mechanics)
A formula for the intensity of radiation emitted by a blackbody within a narrow band of frequencies (or wavelengths), as a function of frequency, and of the body's temperature. Also known as Planck distribution law; Planck's law.