A big water drop is formed by the combination of n small water drops of equal radii. The ratio of the surface energy of n drops to the surface energy of big drop is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Let the radius of bigger water drop 
The radius of smaller water 
Volume of bigger drop 
(volume of smaller drop)
Let surface energy of bigger water drop 
Surface energy of smaller water drop 
or 
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