Source: wikibot/planck-s-law
= Planck's law
{wiki=Planck's_law}
Planck's law describes the spectral density of electromagnetic radiation emitted by a black body in thermal equilibrium at a given temperature. Formulated by Max Planck in 1900, it provides a theoretical foundation for understanding black body radiation. The law states that the intensity of radiation emitted at a specific wavelength is proportional to the wavelength and depends on the temperature of the black body.