Across
- 3. An object that produces light
- 4. The change in direction of a ray of light
- 5. A process where light hits a smooth surface *Includes hyphen in crossword*
- 7. Is the range of all possible frequencies of electromagnetic radiation *Includes hyphen in crossword*
- 8. A type of telescope that has a large circular mirror that curves inwards *Includes hyphen in crossword*
- 14. Shortest type of wavelength
- 15. A material that does not allow any light to pass through
- 18. A type of telescope that has 2 lenses, one on each side of a long tube *Includes hyphen in crossword*
- 20. A device that allows you to see micro-organisms by combining the powers of at least 2 lenses
- 22. The point at which all light rays coming from a single direction and passing through a lens or striking a mirror come together *Includes hyphen in crossword*
- 23. Any technology that uses light *Includes hyphen in crossword*
- 25. Angle of incident of a wave hitting a surface equal the angle of reflection
Down
- 1. A line that is perpendicular to the mirror at the point of reflection
- 2. A material that allows all light to pass by
- 6. All forms of radiant energy *Includes hyphen in crossword*
- 9. A mirror that curves outwards *include hyphen in crossword*
- 10. A type of mirror that provides the clearest reflection *Include hyphen in crossword*
- 11. A mirror that curves inwards *Includes hyphen in crossword*
- 12. A process where light hits a rough and/or uneven surface *Includes hyphen in crossword*
- 13. A type of bulb that's filled with small amounts of gases like mercury vapor
- 16. A device that allows you to see distant objects
- 17. Basically two short refracting telescope that are fixed together
- 19. A ray of light that has arrived from a mirror or another substance *Includes hyphen in crossword*
- 21. An object that doesn't produce any light *Includes hyphen in crossword*
- 24. A material that allows some light to pass by