Describe an activity to show that the incident ray , the reflected ray and the normal at the point of incidence lie in the same plane.

What is the angle of incidence of a ray if the reflected ray is at an angle of 90^@ to the incident ray ?

Complete the ray diagrams by drawing the incident ray or the reflected ray for the following figures.

Complete the ray diagrams by drawing the incident ray or the reflected ray for the following figures.

Describe an activity to show refraction of light through a prism. Draw relevant figure, marking angle of incidence, refraction emergence, and deviation.

State Brewster's law . Show that the reflected and refracted rays are normal to each other at the polarising angle of incidence.

For which angle of incidence reflected ray is completely polarised ?

Angle of incidence is equal to the angle of reflection.