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MHT CET 2026 (17 Apr, Shift 2) · Excess Pressure: Drops & Bubbles

Excess Pressure: Drops & Bubbles question from MHT CET 2026 (17 Apr, Shift 2)

Q4MHT CET 2026 · 17 APR · SHIFT 2Easy

Excess Pressure: Drops & Bubbles

Two soap bubbles, A and B, have radii in the ratio $3 : 2$ . The excess pressure inside the bubble A to that of B is in the ratio

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Answer: (a)

Excess pressure in a soap bubble $\Delta P = \frac{4T}{R}$ , so $\Delta P \propto \frac{1}{R}$ .
$\frac{\Delta P_A}{\Delta P_B} = \frac{R_B}{R_A} = \frac{2}{3}$
So the answer is (a) $2 : 3$ .

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