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JEE PHYSICS MCQ: MECHANICAL PROPERTIES OF FLUIDS

1 Easy

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Pressure inside a soap bubble is greater than the pressure outside by an amount :

(given :

\mathrm{R}=

Radius of bubble,

\mathrm{S}=

Surface tension of bubble)

View answer and explanation

Correct option: A

\frac{4 \mathrm{S}}{\mathrm{R}}

Option A (

\frac{4 \mathrm{S}}{\mathrm{R}}

) is correct because the pressure inside a soap bubble exceeds the outside pressure by

\frac{4S}{R}

due to the two air-liquid interfaces.

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