A black body at a temperature of `227^(@)C` radiates heat energy at the rate of 5 cal/cm-sec.
Channel: Doubtnut
Date: 2021-11-02

A black body at a temperature of `227^(@)C` radiates heat energy at the rate of 5 cal/cm-sec. At a temperature of `727^(@)C`, the rate of heat radiated per unit area in cal/cm will be