Question

State Stefan's law of radiation.

Answer 1

Answer:

The amount of radiation emitted per unit area per time by a perfectly black body is directly proportional to the fourth power of its absolute temperature...

Answer 2

Stefan-Boltzmann law, statement that the total radiant heat power emitted from a surface is proportional to the fourth power of its absolute temperature. The law applies only to blackbodies, theoretical surfaces that absorb all incident heat radiation.