Assertion: spectral radiance | /r/HasProperty | governed by planck's law
Facets:
value: for radiation
type: PURPOSE
Source sentences:
text: For radiation emitted by the surface of an ideal black body at a given temperature, spectral radiance is governed by Planck's law, while the integral of its radiance, over the hemisphere into which its surface radiates, is given by the Stefan–Boltzmann law.