Properties Of Solids And Liquids Question 339

Question: 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 [MP PET 1990]

Options:

A) 18π ergs

B) 180π ergs

C) 1800π ergs

D) 8000π ergs

Show Answer

Answer:

Correct Answer: C

Solution:

W=4πR2T(n1/31)

=4π×1×50(103/31) = 1800π erg



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