Across
- 1. valley between two waves
- 6. measured crest-crest or trough-trough
- 7. shortest wavelengths of visible light
- 9. lines that represent the light paths
- 10. direction of which is hitting the object
- 11. same thing of light which it reflects
- 12. light bouncing of an object
- 15. longest wavelength of visible light
- 17. highest point on a wave
- 18. allows some light to pass
- 19. used to refract visible light
Down
- 2. example of refraction and reflection
- 3. groups of parallel rays
- 4. allows no light to pass
- 5. form of energy
- 6. light color, not on the color spectrum
- 8. allows all light to pass
- 9. bends light
- 13. waves passing a given point in a second
- 14. makes light pass through an object
- 16. dark color, not on the color spectrum