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Olympiad workbook

Exam: Olympiad workbook
Subject: NSEP
Chapter: Mechanical Properties of Fluids

Olympiad workbook · NSEP · Mechanical Properties of Fluids

The excess pressure inside a soap bubble is equal to 2 mm of...

The excess pressure inside a soap bubble is equal to 2 mm of kerosene (density

0.8 \mathrm{~g} \mathrm{~cm}^{-3}

). If the diameter of the bubble is 3.0 cm , the surface tension of soap solution is

Options

A39.2 dyne $\mathrm{cm}^{-1}$
B45.0 dyne $\mathrm{cm}^{-1}$
C51.1 dyne $\mathrm{cm}^{-1}$
D58.8 dyne $\mathrm{cm}^{-1}$

Correct answer

D. 58.8 dyne $\mathrm{cm}^{-1}$

Step-by-step solution

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