JEE PHYSICS MCQ: MECHANICAL PROPERTIES OF FLUIDS

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Water rises to a height of

9 \mathrm{~cm}

in a certain capillary tube. If in the same tube, level of

{Hg}

is depressed by

3 \mathrm{~cm}

, compare the surface tension of water and mercury. Specific gravity of

{Hg}

13.6,

the angle of contact for water is zero and that for

{Hg}

135^{\circ}

View answer and explanation

Correct option: A

0.152

Option A (0.152) is correct because it represents the ratio of the surface tension of water to mercury, calculated using the given heights, densities, and contact angles.

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