Water glass is :

What is water glass ?

For impure water - glass surface , the angle of contact is

For impure water - glass surface, the angle of contact is,

Relation between critical angles of water and glass is

The refractive index of water, glass and diamond are 1.33 , 1.50 , 2.40 respectively. The refractive index of diamond relative to water and of glass relative of diamond, respectively are nearly

The absolute refractive indices of water and glass are 1.3 and 1.5 respectively. The refractive index of water w.r.t. glass is :

What is water glass