When t he angle of incidence of a light ray equals zero, so, this incident light ray falls perpendicular on a reflecting surface. The incident light ray which falls perpendicular on a reflecting surface, reflects on itself b ecause the angle of incidence equals the angle of reflection equals zero. Second law: The incident light ray, the reflected light ray, and the normal line to the reflecting surface at the point of incidence all lie in one plane perpendicular to the reflecting surface.First law: The angle of incidence = Angle of reflection.The reflection of light is governed by two principal laws: When the angle of incidence of a light ray is 60°, so the angle between the incident light ray and the normal is 60°, When the angle between a reflected light ray and the normal is 60°, so the angle of reflection of this light ray is 60°. The reflection angle is the angle between the reflected light ray & the normal.The reflected light ray is the light ray that bounces (returns back) from the reflecting surface.

The normal is the perpendicular line to the reflecting surface on the point of incidence.The angle of incidence is the angle between the incident light ray and the normal.The incident light ray: It is the light ray that falls on the reflecting surface.To study the reflection of light, we must know some concepts relayed to it: Light reflection is the phenomenon of the light bouncing off (returning back) in the same medium, when it strikes a reflecting surface. If you look at a smooth shiny surface (like a still water surface), you can see t he image of the constructed buildings and trees in this still water surface. If you look at a mirror you can see t he image of your face in the mirror due to light reflection. Light reflects when it fails on a reflecting surface such as mirrors or any other smooth shiny surfaces.

Angle of reflection on a mirror