Calculate the amount of heat radiated per second by a body of surface are `10 cm^(2)`
Channel: Doubtnut
Date: 2020-08-23

Calculate the amount of heat radiated per second by a body of surface are `10 cm^(2)` kept in thermal equilibrium in a roomat temperature `27^(@)C`. The emissivity of the surface ` = 0.80` and Stefan's constant sigma ~= 6 xx 10^(-8) W//m^(2) K^(4)`