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The sun having surface temperature Ts ra...

The sun having surface temperature `Ts` radiates like a black body. The radius of sun is `Rs` and earth is at a distance R from the surface of sun. Earth absorbs radiations falling on its surface from sun only and is at constant temperature T. If radiations falling on earth's surface are almost parallel and earth also radiates like a blackbody, then

A

`T=T_s=sqrt(R/(2R))`

B

`T=T_s`

C

`T=T_s/2 sqrt(R_s/R)`

D

`T=T_ssqrt(R_s/R)`

Text Solution

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The correct Answer is:
A
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