Question

What is emmissive power?

Answer 1

All body will emit heat when the body temperature is above absolute zero , and this is called emission and when this emitted heat travels in the form of electro magnetic wave it is called thermal radiation. Emissive power is the energy of thermal radiation emitted in all directions per unit timeper unit area of a surface at any given temperature.

Answer 2

Emissive power is the energy of thermal radiation emitted in all directions per unit timeper unit area of a surface at any given temperature.