A small hole is made in a hollow sphere whose walls are at `723^(@)C`. Find the total energy
Channel: Doubtnut
Date: 2020-08-30

A small hole is made in a hollow sphere whose walls are at `723^(@)C`. Find the total energy radiated per seond per `cm^(2)`. Given Stenfan's constant `= 5.7 xx 10^(-5) erg cm^(-2) s^(-1) K^(-4)`.