Question

Two capillary tubes of different diameters are dipped in water. The rise of water is _________.

• A. same in both the tubes
• B. greater in the tube of smaller diameter
• C. greater in the tube of larger diameter
• D. None of the above

Answer 1

The correct option is B greater in the tube of smaller diameter

Smaller the diameter of the Capillary tube, more is proportion of water molecules which are in contact with the tube molecules than that of water molecules inside bulk of the liquid.

So rise of water will be more due to higher Adhesion force.