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Stefan–Boltzmann law Syllabification: Ste·fan–Boltz·mann law
Pronunciation: /ˌstefənˈbōltsmən ˌlô/

Definition of Stefan–Boltzmann law in English:

A law stating that the total radiation emitted by a black body is proportional to the fourth power of its absolute temperature.
Example sentences
  • The Stefan-Boltzmann Law gives the total energy being emitted at all wavelengths by the blackbody (which is the area under the Planck Law curve).
  • The Stefan-Boltzmann law tells you how much energy a blackbody radiator of a given temperature radiates per unit area of it surface.


Late 19th century: named after Josef Stefan (1835–93), Austrian physicist, and L. Boltzmann (see Boltzmann, Ludwig).

Definition of Stefan–Boltzmann law in:

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