Question

A capillary tube is dipped vertically in a liquid. If the liquid surface is hemispherical, then th angle of contach is given by

Answer 1

Answer:

gudh marani

Explanation:

khankimaggi

Answer 2

The angle of contact theta would be 90 degrees.

• The height h through which a liquid will rise up in a capillary tube of internal radius r is stated by

        h= 2Scosθ/rρg

• Here S is recognized as the surface tension, ρ is the liquid density and θ is the contact angle.

• If the level of liquid inside and outside of the tube are equivalent. Then We have cosθ=0, as other variables can't be 0.

                         cosθ=0

• Therefore, the contact θ would be 90 degrees.