Question bank/JEE Main/Physics
JEE MainPhysicsModerateMechanical Properties of Fluids
When a capillary tube is dipped in a liquid, the liquid rises to
a height h in the tube. The free liquid surface inside the tube is
hemispherical in shape. The tube is now pushed down so that the height
of the tube outside the liquid is less than h.
Show answer and solution
The angle of contact at the free liquid surface inside the
capillary tube will change such that the vertical component of the
surface tension forces just balance the weight of the liquid column.
capillary tube will change such that the vertical component of the
surface tension forces just balance the weight of the liquid column.
Source: Grass-G / P-24 Physcis Paper 31 Dec.docx
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