A ray of light incident on a horizontal plane mirror at an angle of incidence `30^(0)`.The angle at which the mirror is rotated so that the reflected ray becomes horizontal is `6x^(0)` , then x=

A ray of light is incident on a plane mirror at an angle of incidence of 30^@ . The deviation produced by the mirror is

A ray of light falls normally on a plane mirror. What is the angle of incidence ?

A light ray is incident normally on a plane mirror. What is its angle of incidence?

A light ray is incident normally on a plane mirror. What is the angle of incidence?

A light ray strikes a horizontal plane mirror and gets deviated by pi//3 . By what angle should the mirror be tilted so that the reflected ray becomes vertical?

a ray of light is incident on a plane miror at an angle of 30^(@) in anti-clockwise direction. Find the angle and sense of rotation of the reflected ray.

rays of light strike a horizontal plane mirror at an angle of 45^(@) . At what angle should be a second plane mirror be placed in order that the reflected ray finally be reflected horizontally from the second mirror.

A ray of light is incident perpendicularly on a glass slab. The angle of incidence is 90^(0) .

When a ray of light falls normally on a plane mirror. The angle of incidence will be

When a ray of light strikes a plane mirror along the normal, the angle of incidence is :