Across
- 3. the change in direction of a wave as it crosses the boundary between two media in which the wave travels at different speeds
- 6. a process in which sound or light is absorbed and reemitted in all directions
- 7. angle between a reflected ray and the normal to a surface
- 8. a material that selectively absorbs colored light
- 11. a floating image that appears in the distance and is due to the refraction of light in Earth's atmosphere
- 12. the separation of light into colors arranged according to their frequency
- 14. the bouncing back of a particle or wave that strikes the boundary between to surfaces
- 15. the reflection of waves in many directions from a rough surface
- 16. red, blue, and green light; these colors when added together produce white light
Down
- 1. the angle of incidence for a wave that strikes a surface is equal to the angle of reflection
- 2. a mixture of all colors of the visible light spectrum
- 4. the colors of magenta, yellow, and cyan
- 5. angle between an incident ray and the normal to a surface
- 6. the spread of radiation by frequency
- 9. persistence of a sound due to multiple reflections
- 10. two colors of light beams that when added together appear white
- 13. a line perpendicular to a surface