Q. 113.9( 8 Votes )
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Answer :
Surface area of a shephe = 4πr2
Ratio of surface areas of spheres = square of ratio of their radius
Given, diameter of the moon is approximately one fourth of the diameter of the earth
∴ rm = 1/4 × re
⇒ rm : re = 1 : 4
Ratio of their surface area = 1 : 16
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