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MHT CET 2023 (9 May, Shift 1) · Excess Pressure: Drops & Bubbles

Excess Pressure: Drops & Bubbles question from MHT CET 2023 (9 May, Shift 1)

Q35MHT CET 2023 · 9 MAY · SHIFT 1Medium

Excess Pressure: Drops & Bubbles

The excess of pressure in a first soap bubble is three times that of other soap bubble. Then the ratio of the volume of first bubble to other is

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Answer: (d)

  1. ΔP∝1R\Delta P \propto \frac{1}{R}; ΔP1=3ΔP2⇒R1=R23\Delta P_1 = 3\Delta P_2 \Rightarrow R_1 = \frac{R_2}{3}.
  2. V1V2=(13)3=127\frac{V_1}{V_2} = \left(\frac{1}{3}\right)^3 = \frac{1}{27}
  3. So the answer is (d) 1:271 : 27.
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