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A spherical drop of oil of radius 1 cm i...

A spherical drop of oil of radius 1 cm is broken into 1000 droplets of equal radii. If the surface tension of oil is 50 dynes / cm , the work done is

A

`18 pi ` erg

B

`180 pi` erg

C

`1800 pi` erg

D

` 18000 pi` g

Text Solution

Verified by Experts

The correct Answer is:
C
` dE = 4piR^(2)T(n^(1//3)-1)`
` = 4 pi xx1 xx 50 xx 99 = 1800 pi` erg
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