Across
- 1. Produces a concentrated beam of light
- 4. Separates white light into colors
- 9. Carries light energy
- 10. Small particle of light
- 12. Distance between two wave peaks
- 13. Part of the eye that detects light
- 16. Bouncing back of light
- 17. Study of light and vision
- 19. Used to focus light
- 23. Bending of light around edges
- 24. Device used to see over obstacles
- 25. Blocks light completely
Down
- 2. Colorful arc formed by light and water
- 3. Allows light to pass through clearly
- 5. Instrument used to view distant objects
- 6. Bending of light through materials
- 7. Number of waves passing a point
- 8. Overlapping of light waves
- 11. Allows some light to pass through
- 14. Instrument used to see tiny objects
- 15. Reflects images back
- 18. Dark area where light is blocked
- 20. Makes objects appear larger
- 21. Band of colors from light
- 22. Uses light signals for communication