Physics · Mechanical Properties of Matter

JEE Main 2025 — 3 April, Evening Shift — Question 69

The excess pressure inside a soap bubble $A$ in air is half the excess pressure inside another soap bubble

$B$ in air. If the volume of the bubble $A$ is $n$ times the volume of the bubble $B$ , then, the value of $n$ is

Answer: 8

Numerical answer — enter this value.

$\frac{2 s}{r_{1}}=\frac{1}{2} \frac{2 s}{r_{2}}$

$r_{1}=2 r_{2}$ Ratio

$=\frac{\frac{4}{3} \pi r_{1}^{3}}{\frac{4}{3} \pi r_{2}^{3}}=8$

Answer key and solution verified before publishing.

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