Radiation||Perfectly black body||Absorptive power||Emissive power

Introduction OF radiator||Blackbody||Prevost theory||Absorptive power||Emissive power

For a perfectly black body, its abosrpitve power is

Define absorptive power and emissive power of a body.

For perfectly black body emissivity (e) is

Radiation: Stefan's law | Emissive power | Absorptive power | Kirchhoff's law | Spectral emissive power (blackbody radiation curve) | Wein's law Newton's law of cooling: exact and approximate method