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Solar Constant (s) : s =((r )/(R ))^(2)...

Solar Constant (s) : s `=((r )/(R ))^(2)sigmaT^(4)` , where
r= radius of sun ,R= distance of the earth from the centre of sum , T= absolute temperature of sun . Value of solar constant is `1.937 "cal cm"^(-2) "min"^(-1)` . Is the statement true?

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