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MHT CET 2026 (11 Apr, Shift 2) · Splitting & Merging of Drops

Splitting & Merging of Drops question from MHT CET 2026 (11 Apr, Shift 2)

Q2MHT CET 2026 · 11 APR · SHIFT 2Easy

Splitting & Merging of Drops

A liquid drop having surface energy E is sprayed into $512$ droplets of the same size. Then the final surface energy is

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Answer: (b)

Volume conserved: $r = R/n^{1/3} = R/8$ .
Final energy $= n \times 4\pi r^2 T = 512 \times \dfrac{1}{64} \times 4\pi R^2 T = 8E$
In general $E_f = n^{1/3} E$ .
So the answer is (b) $8E$ .

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