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MHT CET 2023 (11 May, Shift 1) · Splitting & Merging of Drops

Splitting & Merging of Drops question from MHT CET 2023 (11 May, Shift 1)

Q36MHT CET 2023 · 11 MAY · SHIFT 1Medium

Splitting & Merging of Drops

A spherical liquid drop of radius $R$ is divided into 8 equal droplets. If surface tension is $S$ , then the work done in this process will be

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Answer: (c)

Use $W = 4\pi R^2 S\left(n^{1/3} - 1\right)$ .
$n = 8 \Rightarrow n^{1/3} = 2$ , so $W = 4\pi R^2 S(2 - 1)$
So the answer is (c) $4\pi R^2 S$ .

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