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 liquidsurface inside the tube is

hemispherical in shape. The tube is now pushed down so that the height

ofthe 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 verticalcomponent of the

surface tension forces just balance the weight of the liquid column.

vUnj nzo dh eqDr lrg ij lEidZ dks.k bl çdkj cny tk,xk fd

i`"B ruko cy dk ?kVd nzo LrEHk

Source: Grass-G / Ph-27 Physics paper 2 15 Jan.docx

Need a video for this idea?

Scan any doubt from your notes and get a whiteboard explanation.