Are the angle of incidence , angle of refraction and the normal at the point of incidence on the same plane ?

What change occurs in the angle of refraction with the increase in the angle of incidence when a ray enters a medium ?

Is the angle of refraction greater or lower than the angle of incidence when it goes from air to glass ?

The angle between the incident ray and the normal is called the angle of incidence . If so, can you explain ehat is angle of refraction ?

A ray of light falls on the side of a prism ABC whose refracting angle Is A. The angles of incidence and refraction at the first face AB is i_1 and r_1 while at the second face AC is i_2 and r_2 What do you understand by the critical angle of the prism.

A light ray travelling from one medium to another me dium is given in the figure.What is a relation between angle of incidence, angle of refraction and refractive index of medium.

Will total internal ,reflection take place when light passing through water is incident on the surface of separation with air at the angle of incidence of 45^@ ? Why ?