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JEE PHYSICS MCQ: MECHANICAL PROPERTIES OF FLUIDS

1 Medium

1 of 1

Application +4 | -1

If 27 identical liquid drops are combined to form a larger drop of radius

R

, then loss of surface energy is (surface tension of liquid is

S {~N} {~m}^{-1}

)

View answer and explanation

Correct option: D

8 \pi R^2 S

Option D (

8 \pi R^2 S

) is correct because the loss of surface energy is the product of surface tension and the decrease in surface area when the drops combine.

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