Show that for a light ray incident at an angle i on getting reflected the angle of deviation is `delta=pi-2i` or `pi +2i`.

In a reflecting periscope , if a light ray is incident at 45^(@) angle at the first plane mirror, then the angle of deviation of light ray by the periscope is ______ .

Light is incident at an angle i on a glass slab. The reflected ray is completely polarished . The angle of refraction is

Light is incident at an angle i on a glass slab. The reflected ray is completely polarished . The angle of refraction is

In the figure PQ is a ray Incident on a prism ABC. Complete the ray diagram showing the passage of light. Mark angle of incidence i, angle of emer gence e, angle of deviation delta and angle of re fractions r_1 and r_2

A ray of light is incident on a plane mirror at an angle of incidence of 30^@ . The angle of deviation as a result of reflection will be :

A ray of light is incident at an angle i from denser to rare medium. The reflected and the refracted rays are mutually perpendicular. The angle of reflection and the angle of refraction are respectively r and r'. Then the critical angle will be:

A ray of light is incident at an angle i from denser to rare medium. The reflected and the refracted rays are mutually perpendicular. The angle of reflection and the angle of refraction are respectively r and r'. Then the critical angle will be: