A plane mirror reflecting a ray of incident light is rotated through an angle q about an axis
Channel: Doubtnut
Date: 2020-08-23

A plane mirror reflecting a ray of incident light is rotated through an angle q about an axis through the point of incidence in the plane of the mirror perpendicular to the plane of incidence, then  (1) The reflected ray rotates through an angle 2q  (2) The incident ray is fixed  (3) The reflected ray does not rotate   (4) The reflected ray rotates through an angle q