Question

plz describe me stiffen 'law​

Answer 1

The Stefan–Boltzmann law describes the power radiated from a black body in terms of its temperature. Specifically, the Stefan–Boltzmann law states that the total energy radiated per unit surface area of a black body across all wavelengths per unit time {\displaystyle j^{\star }} j^{\star} (also known as the black-body radiant emittance) is directly proportional to the fourth power of the black body's thermodynamic temperature

Answer 2

Steffen's law states that the total radiant energy emitted per second from unit area of the surface of a black body is directly proportional to the fourth power of it's absolute temperature.

E=sigma× T^4