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Surface Tension

Question

The excess pressure in a bubble of radius R of a gas in a liquid of surface tension S is

A

$$\frac{2R}{S}$$

B

$$\frac{4S}{R}$$

C

$$\frac{2S}{R^{2}}$$

D

$$\frac{2R^{2}}{S}$$

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Solution

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Correct option is A. $$\frac{4S}{R}$$

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