Questions
One thousand small water drops of equal radii combine to form a bigger drop. The ratio of final surface energy to the total initial surface energy is
a
1000 : 1
b
1 : 1000
c
10 : 1
d
1 : 10
detailed solution
Correct option is D
R=n13rEbigdropEndrops=4πR2Tn×4πr2T=1n13=1:10Talk to our academic expert!
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