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MHT CET 2025 (23 Apr, Shift 1) · Excess Pressure: Drops & Bubbles

Excess Pressure: Drops & Bubbles question from MHT CET 2025 (23 Apr, Shift 1)

Q16MHT CET 2025 · 23 APR · SHIFT 1Medium

Excess Pressure: Drops & Bubbles

The excess pressure inside first soap bubble is three times that of a second soap bubble. The ratio of volumes of the first to second bubble

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Answer: (c)

$\Delta P \propto \frac{1}{R}$ ; $\Delta P_1 = 3\Delta P_2 \Rightarrow R_1 = \frac{R_2}{3}$ .
$\frac{V_1}{V_2} = \left(\frac{1}{3}\right)^3 = \frac{1}{27}$
So the answer is (c) $1 : 27$ .

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