One drop of soap bubble of diameter 
breaks into 27 drops having surface tension . The change in surface energy is
a)
b)
c)
d)
One drop of soap bubble of diameter breaks into 27 drops having surface tension . The change in surface energy is
a)
b)
c)
d)
Question ID - 57254 | SaraNextGen Top Answer
One drop of soap bubble of diameter breaks into 27 drops having surface tension . The change in surface energy is
a)
b)
c)
d)
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One drop of soap bubble of diameter |
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b) |
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c) |
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d) |
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1 Answer
127 votes
Answer Key / Explanation : (a) -
(a)
Surface tension (T )of a liquid is equal to the work (W ) required to increases the surface area 
of the liquid film by unity at constant temperature.
Also, volume of big drop 
Where 
is volume of big drop of diameter D and V the volume of small drop of diameter 
127 votes
Answer Link
127