Reflection and Mirrors - Mission RM1 Detailed Help


The diagram depicts light reflecting off a planar surface. If angle A is a 25 degree angle, then the angle of reflection is ____ degrees.


 
The Law of Reflection:
When a ray of light reflects off a surface, the angle of incidence is equal to the angle of reflection. The incident ray and reflected ray are always located within the same plane.


 
Definition of Angle of Incidence:
The angle of incidence is the angle made by the ray of light approaching a surface (incident ray) and the normal line drawn to the surface at the location where the ray contacts the surface.
 

Definition of Angle of Reflection:
The angle of reflection is the angle made by the ray of light leaving a surface (reflected ray) and the normal line drawn to the surface at the location where the ray leaves from the surface.


 

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