The intensity of salr radiation just outside the earth's atmosphere is measured to be `1.4 kW//m^2`.
Channel: Doubtnut
Date: 2020-07-26

The intensity of salr radiation just outside the earth's atmosphere is measured to be `1.4 kW//m^2`. If the radius of the sun `7xx10^8m`, while the earth-sun distance is `150xx10^6km`, then find  i. the intensity of salr radiation at the surface of the sun.  ii. the temperature at the surface of the sun assuming it to be a black body,  iii. the most probable wavelength in solar radiation.