Stefan-Boltzman law for radiation

DC power supply (0-30) volt, 2 A.
Thermopile with holder.
Halogen lamp.
Metallic optical bench.
Digital multi meters.


This experiment is used for Verification of Stefan-Boltzmann’s law of radiation, the energy emitted by a black body per unit area and unit time is proportional to the power “four” of the absolute temperature of the body.
In the experiment, the “gray” body is represented by the filament of a halogen lamp whose energy emission is investigated as a function of the temperature.