Physics - Heat & Thermo Question with Solution | TestHub

The solar energy received by the Earth per square metre per minute is $8.315\times 10^4$ J m⁻² min⁻¹. If the radius of the Sun is $7.5\times 10^5$ km and the distance of the Earth from the Sun is $1.5\times 10^8$ km, calculate the surface temperature of Sun. Assume the Sun as a perfect black body. Given that Stefan constant $\sigma =5.7\times 10^{-8}$ W m⁻² K⁻⁴.