Assuming the sun to have a spherical outer surface of radius r, radiating like a black...

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Assuming the sun to have a spherical outer surface of radius r, radiating like a black body at temperature tC, the power received by a unit surface, (normal to the incident rays) at a distance R from the centre of the sun is r(t+273)4 (a) 4R 16r ot (b) R ro(t+273)+ (c) (d) R where o is the Stefan's constant. R 4rt Assuming the sun to have a spherical outer surface of radius r, radiating like a black body at temperature tC, the power received by a unit surface, (normal to the incident rays) at a distance R from the centre of the sun is r(t+273)4 (a) 4R 16r ot (b) R ro(t+273)+ (c) (d) R where o is the Stefan's constant. R 4rt

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