Details
The law may be written as
where
-
- is the amount of energy per unit surface area per unit time per unit solid angle per unit frequency emitted at a frequency ν.
- is the temperature of the black body.
- is Planck's constant.
- is the speed of light.
- is Boltzmann's constant.
This equation may also be written as
where is the amount of energy per unit surface area per unit time per unit solid angle per unit wavelength emitted at a wavelength λ.
The peak value of this curve, as determined by taking the derivative and solving for zero, occurs at a wavelength λmax and frequency νmax of:
in cgs units.
Read more about this topic: Wien Approximation
Famous quotes containing the word details:
“Patience is a most necessary qualification for business; many a man would rather you heard his story than granted his request. One must seem to hear the unreasonable demands of the petulant, unmoved, and the tedious details of the dull, untired. That is the least price that a man must pay for a high station.”
—Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)