A ray of light is incident on a plane mirror at an angle of 40 deg with respect of surface normal Wh...........

General Science (CDS) Physics

A ray of light is incident on a plane mirror at an angle of 40° with respect of surface normal. When it gets reflected from the mirror, it undergoes a deviation of

40°

100°

90°

80°

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Explanation:

A ray that comes from a source of light to the surface of the object is called ray of incidence and the ray which get reflected after striking to the surface of the object is called ray of reflection. The ray of incidence and the ray of reflection make the same angle. We measure these angles with respect to the normal of surface.