The surface of the earth receives solar radiation at the rate of 1400 Wm−2. The distance of the centre of the sun from the surface of the earth is 1.5×1011m and the radius of the sun is 7.0×108m. Treating the sun as a back body, it follows from the above data that the surface temperature of the sun is about

The surface of the earth receives solar radiation at the rate of 1400

1.	The surface of the earth receives solar radiation at the rate of 1400 Wm−2. The distance of the centre of the sun from the surface of the earth is 1.5×1011m and the radius of the sun is 7.0×108m. Treating the sun as a back body, it follows from the above data that the surface temperature of the sun is about
Answer» The surface of the earth receives solar radiation at the rate of 1400 $W m^{- 2}$ . The distance of the centre of the sun from the surface of the earth is $1.5 \times 10^{11} m$ and the radius of the sun is $7.0 \times 10^{8} m$ . Treating the sun as a back body, it follows from the above data that the surface temperature of the sun is about

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