Stefan-Boltzmann Law
The Terms
- Energy radiated per unit area of a black body per unit time [Units: J m-2 s-1]
- Stefan-Boltzmann constant [Value: 5.67 x 10-8 J s-1 m-2 K-4]
- Absolute temperature [Units: K]
What Does It Mean?
This law states that the energy radiated from a black body is proportional to the fourth power of the absolute temperature. A black body is one which absorbs and emits radiation at all frequencies, with characteristic continuous emission spectra.
Further information at Warwick
The Stefan-Boltzmann Law is covered in the first year module "PX101 Quantum Phenomena".
