Across
- 3. the angle of incidence greater than which total internal reflection occurs
- 5. propagation of disturbances from place to place in a regular and organized way
- 9. perpendicular
- 11. type of wave that propogates through space
- 12. coming together
- 14. reflection from an irregular surface
- 16. waves in which the vibrations occur in a single plane
- 17. distance from wave crest to wave crest
- 19. bending of light when entering a denser medium
Down
- 1. one theory of how light propogates
- 2. circular wavefront produced when a wave encounters a narrow slit
- 4. image height over object height
- 6. the span of wavelengths of electromagnetic radiation
- 7. Thomas who proved light propogates as a wave
- 8. number of cycles per second
- 10. bouncing off an angle the same as the incident angle
- 13. how sunlight reaches earth
- 15. reflection from a flat surface
- 18. spreading apart