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JEE PHYSICS MCQ: MECHANICAL PROPERTIES OF FLUIDS

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A small hole is made at the bottom of a hollow sphere. The water enters into it when it is taken to a depth of 40 cm under water. If the surface tension of water is

0.07\,N{m^{ - 1}},

diameter of the hole is

View answer and explanation

Correct option: D

\frac{{1}}{14}\,mm

Option D (

\frac{{1}}{{14}}\,mm

) is correct because it is calculated by equating the pressure due to the water column with the pressure due to surface tension and solving for the diameter.

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