1
When light rays are above the critical angle, no refraction is seen.
2
A ratio of speed of light in a vacuum to speed of light in a medium. Different for each opaque material.
3
The angle at which light strikes a surface. Measured from the normal.
4
angle of incidence equals angle of reflection
5
Angles above this result in reflection only - no refraction is seen
6
300,000,000 m/s
7
Image that appears behind a mirror or in front of a lens.
8
Light bends as it travels from one medium to another.
9
where light rays intersect through a lens or from a mirror
10
Light waves bounce off a hard boundary.
11
Image that appears behind a lens or in front of a mirror.
12
Mirror type that causes light rays to converge
13
A packet of particles that is released as an excited electron regains its original energy level
14
Mirror type that results in divergent rays of light.
15
Perpendicular to the boundary of two mediums.
