Question
A body emits radiant energy 1600Js‾¹ when it is at temperature 273 °C. if its temperature decreases to 273 K them it emits radiant energy at the rate of
(1) 0
(2) 800 Js‾¹
(3) 400 Js‾¹
(4) 100 Js‾¹
Joshi sir comment
Temprature of second case is half of the temprature of first case so according to stefan's law radiant power will become 1/16 part = 100