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PhysicsFluidSurface TensionEasy2 minPYQ_2011

PhysicsEasysingle choice

Work done in increasing the size of a soap bubble from a radius of $3 cm$ to $5 cm$ is nearly (Surface tension of soap solution $= 0.03 Nm^{- 1}$ ):

Answer:

Solution:

$W = T \times Δ A = T \times 8 π (r_{2}^{2} - r_{1}^{2}) = 0.4 π mJ$

Stream:JEESubject:PhysicsTopic:FluidSubtopic:Surface Tension

⏱ 2mℹ️ Source: PYQ_2011

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