A full radiator at `0^(@)C` radiates energy at the rate of `3.2 xx 10^(4) erg cm^(-2) s^(-1)`.
Channel: Doubtnut
Date: 2021-11-02

A full radiator at `0^(@)C` radiates energy at the rate of `3.2 xx 10^(4) erg cm^(-2) s^(-1)`. Find (i) Stefan's constant and (ii) the amount of heat radiated per second by a sphere of radius 4 cm and at a temperature of `1000^(@)C`.