A student has sketched a diagram showing the directions of a light ray as it reflects from a plane mirror. What are the correct names for the lines shown?
- Anormal: 1; incident ray: 2; reflected ray: 3
- Bnormal: 1; incident ray: 3; reflected ray: 2
- Cnormal: 2; incident ray: 1; reflected ray: 3
- Dnormal: 2; incident ray: 3; reflected ray: 1