| A | B |
| regular reflection | The rays are reflected parallel to each other with little scattering. |
| diffuse reflection | reflected light that is scattered in many directions due to an irregular surface |
| primary colors | red+blue+green = white |
| primary pigments | yellow+cyan (bright blue) + magenta (purple red)= black |
| pigments | paints |
| convex mirrors | The surface of a mirror curves outward. The image formed is erect and smaller than the object. |
| concave mirrors | surface of a mirror curves inward. Images formed are upside down. |
| plane mirrors | I has a flact surface. The image formed is erect and the same size as the object. |
| reflective ray | a line perpendicular to the barrier |