Question

1.
Solar constant for earth is 2 cal/min cm. #distance
of mercury from sun is 0.4 times than distance of
carth from sun then solar constant for mercury w
(1) 12 5 cal/min on
(2) 25 cal/min
10.32 cal/minem
142 cal/min cm​

Answer 1

The distance of  earth from sun then solar constant for mercury is S' = 12.5 cal/min.

Explanation:

S = (Rs / d)^2 σT^4   [ For Earth ]

S' = (Rs / d')^2  σT^4

S / S' = (d' / d)^2

S' = 2 / (0.4)^2

S' =  2 / 0.16

S' = 12.5 cal/min

Thus the distance of  earth from sun then solar constant for mercury is S' = 12.5 cal/min.

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