Explain why
(a) The angle of contact of mercury with glass is QBtuse, while that of water with glass is acutue

The elasticity of glass is more than that of rubber - Explain .

Why water wets glass, but not mercury?

Why does mercury not cling to glass?

Explain why Aquatic species are more comfortable in cold water rather than in warm water.

Explain why When we try to close a watertap with our fingers, fast jets of water gush through the openings between our fingers

Mercury has an angle of contact equal to 140^@ with soda lime glass. A narrow tube of radius 1.00 mm made of this glass is dipped in a trough containing mefcury. By what amount does the mercury dip down in the tube relative to the liquid surface outside? Surface tension of mercury at the temperature of the experiment is 0.465 N m^-1 . Density of mercury = 13.6 xx 10^3 kg m^-3

Explain, why is it difficult for a fireman to hold a hose, which ejects large amounts of water at a high velocity.

Why water can be poured into a bottle with a narrow neck with the aid of glass tube?

Explain why rain drops are spherical while the surface of water in a pond is flat.

What is the Brewster angle for air to glass transition? (Refractive index of glass is 1.5)