Across
- 1. Which color has the shortest wavelength of light -----
- 3. When a beam of light enters one medium from another, which quantity will not change?
- 4. Which material is sensitive to light?
- 9. The wavelength of light has no role in ------
- 11. The band of light wavelengths that are too long to be seen by the human eye
- 14. An object nearer to a converging lens than its focal point always has a/an ______ image.
- 15. Is a non-coherent light source foe optical communications system
- 16. An object farther from a converging lens than its focal point always has a/an _____ image.
- 18. ________ dispersion is caused by the difference in the propagation times of light rays that take different paths down a fibe
- 19. If a mirror is used to reflect light, the reflected light angle is ____ as the incident angle
Down
- 2. The real image formed by a spherical mirror is ____ relative to its object
- 5. Which type of laser is the simplest to modulate directly by changing its excitation?
- 6. Which diode is used as an optical receiver in fiber optics communications
- 7. The band of light wavelengths that are too short to be seen by the human eye
- 8. Photodiodes used as fiber optic directors are ------ bias
- 10. The loss in signal power as light travels down a fiber is called-----
- 12. What is the stage of the sand becoming a silicon?
- 13. Which theory states that the light wave behaves as if it consists of many tiny particles?
- 17. What generates a light beam of a specific visible frequency?