Question

Temperature of black body increase from T to 2T , how many times will its radiation be? 1)16 2)8 3)4 4)2

Answer 1

The radiation should be 8

Answer 2

All objects with a temperature above absolute zero (0 K, -273.15 oC) emit energy in the form of electromagnetic radiation. A blackbody is a theoretical or model body which absorbs all radiation falling on it, reflecting or transmitting none.