Planck's law ( by the Frequency)


Planck’s law describes the electromagnetic radiation emitted from a black body at a certain temperature. Radiance and spectral radiance are measures of the quantity of radiation that passes through or is emitted from a surface and falls within a given solid angle in a specified direction. Planckian spectral radiance can be measured by the frequency of the radiation.

Related formulas


B(v,T)spectral radiance (J*s-1*m-2*sr-1*Hz-1)
hPlanck constant
νfrequency (Hz)
cSpeed of light
kBBoltzmann constant
TAbsolute temperature (K)