| A | B |
|---|
| Reflection | the process in which light strikes a surface and bounces back |
| Normal line | a line perpendicular to the surface which light is hitting |
| Angle of Incidence | angle between normal line and the incidence ray |
| Incidence Ray | The light beam from the source |
| Angle of Reflection | The angle between the normal line and the reflection ray |
| Plane mirror | A mirror with a flat surface |
| Law of Reflection | Angle of Reflection is equal to Angle of Incidence |
| Plane | An imaginary flat surface |
| Convex | when a surface 'bulges' out |
| Concave | When a surface caves in |
| Smooth Surfaces | Reflect light uniformly |
| Rough Surfaces | Reflect light randomly |
