If the angle incidence and angle of emergence of a light ray falling on a glass slab are i and e respectively, then prove that, i=e.

When a ray of light enters a glass slab from air

The angle of incidence for a ray of light having zero reflection angle is

For the same angle of incidence, the angle of refraction in two media A and B are 25^@ and 35^@ respectively. In which one of the two media is the speed of light lesser?

After tracing the path of a ray of light through a glass prism, a student marked the angle of indicence (angle i) , angle of emergence (angle e) and the angle of deviation (angleD) as shown in the diagram. The correctly marked angles are :

When light ray passes from air to glass slab then it …………………. .

A pencil of light rays falls on a plane mirror and forms a real image, so the incident rays are