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Excess Pressure in Bubbles

The excess pr...

Question

The excess pressure inside a soap bubble is:

A

Inversely proportional to the surface tension

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B

Inversely proportional to its radius

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C

Directly proportional to square of its radius

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D

Directly proportional to its radius

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Solution

The correct option is C Inversely proportional to its radius
$Δ p = \frac{4 T}{R}$
$Δ p \propto \frac{1}{R}$

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