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This is another Ray Diagram, except of the reflection of a wave. It shows an incident ray hitting a boundary and reflecting off (in the same medium). This is different from refraction in that the wave does not cross the boundary. The angle between the incident ray and the normal line is the angle of incidence, and the angle between the reflected ray and the normal line is the angle of reflection. These two angles are always equal. Self-created.
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This is another Ray Diagram, except of the reflection of a wave. It shows an incident ray hitting a boundary and reflecting off (in the same medium). This is different from refraction in that the wave does not cross the boundary. The angle between the inc