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  4. If R is the radius of a soap bubble and S its surface tension, then the excess pressure inside is

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Q. If $R$ is the radius of a soap bubble and $S$ its surface tension, then the excess pressure inside is

J & K CETJ & K CET 2011Mechanical Properties of Fluids

Solution:

If $R$ is the radius of a soap bubble and $S$ its surface tension then the excess pressure inside Is
$ \frac{4S}{R} $ .