Question

explain the Stefan law

Answer 1

the principle that the energy radiated per second by unit area of a black body at thermodynamic temperature T is directly proportional to T4. The constant of proportionality is the Stefan constant, equal to 5.670400 × 10–8 Wm–2 K–4.

Answer 2

When hot body is created in air ,the rate of loss of heat from the hot body is proportional to the difference of body temperature between the body and its surroundings by
Q1=Q2