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Assuming the sun to have a spherical out...

Assuming the sun to have a spherical outer surface of radius r, radiating like a black body at temperature `t^@c`, the power received by a unit surface, (normal to the incident rays) at a distance R from the centre of the sun is
where `sigma` is the Stefan's constant.

A

`(4pir^2sigmat^4)/R^2`

B

`(r^2sigma(t+273)^4)/(4piR^2)`

C

`(16pi^2r^2sigmat^4)/R^2`

D

`(r^2sigma(t+273)^4)/(R^2)`

Text Solution

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The correct Answer is:
D
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