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The earth receives at its surface radiat...

The earth receives at its surface radiation from the sun at the rate of `1400 Wm^-2.` The distance of the centre of the sun from the surface of the earth is `1.5xx10^11 m` and the radius of the sun is `7xx10^8m.` Treating the sun as a black body, it follows from the above data that its surface temperature is ......K

A

5,801 K

B

`10^6` K

C

50.1K

D

`5,801^@C`

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