Published by:
CGP EDU Academic Team
Published on: September 12, 2026
If 1000 droplets of water of surface tension 0.07 N/m. having same radius 1 mm each, combine to from a single drop. In the process the released surface energy is- (Take 
)
Text Solution
Verified by ExpertsThe correct answer is:
B
R=10mm
T x 1000 x 4 
(10 -3 ) 2 - T x 4 
(10 x 10 -3 ) 2 = 
E
E = 4 x 
x 7 x 10 -2 [1000 - 100] x 10 -6
E = 7.92 x 10 -4 J
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