Properties Of Solids And Liquids Question 341

Question: If the surface tension of a liquid is T, the gain in surface energy for an increase in liquid surface by A is [MP PET 1991; RPMT 2002]

Options:

A) $ A{{T}^{-1}} $

B) $ AT $

C) $ A^{2}T $

D) $ A^{2}T^{2} $

Show Answer

Answer:

Correct Answer: B

Solution:

Surface energy = surface tension × increment in area = $ T\times A $



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