Two soap bubbles of the same soap solution have diameters in the ratio – InterviewSolution

1.

Two soap bubbles of the same soap solution have diameters in the ratio 1 : 2. What is the ratio of work done to blow these bubbles ?

Answer»

Work done oc surface area.

∴ W₁/W₂ = (r₁/r₂)² = (\(\frac12\))² = \(\frac14\)

∴ W₁ : W₁ = 1 : 4.

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