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PhysicsFluidSurface TensionEasy2 minPYQ_2025

PhysicsEasynumerical

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:

8.00

Solution:

$Δ P = \frac{4 T}{R} \frac{R _{A}}{R _{B}} = \frac{Δ P _{B}}{Δ P _{A}} = 2 \frac{V _{A}}{V _{B}} = (\frac{R _{A}}{R _{B}})^{3} = 8$

Stream:JEESubject:PhysicsTopic:FluidSubtopic:Surface Tension

⏱ 2mℹ️ Source: PYQ_2025

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