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MHT CET 2021 (20 Sep, Shift 1) · Excess Pressure: Drops & Bubbles

Excess Pressure: Drops & Bubbles question from MHT CET 2021 (20 Sep, Shift 1)

Q46MHT CET 2021 · 20 SEP · SHIFT 1Easy

Excess Pressure: Drops & Bubbles

Let ' $R_1$ ' and ' $R_2$ ' are radii of two mercury drops. A big mercury drop is formed from them under isothermal conditions. The radius of the resultant drop is

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Answer: (b)

Volume is conserved: $R^3 = R_1^3 + R_2^3$ .
$R = \left(R_1^3 + R_2^3\right)^{1/3}$
So the answer is (b).

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