Across
- 1. to increase the apparent size of, the act of magnifying
- 3. the number of cycles or completed alternations per unit time of a wave or oscillation
- 5. the change of direction of light, sound, or heat
- 9. a device that produces a nearly parallel and coherent beam of light by exciting atoms to a higher energy level and causing them to radiate their energy in phase
- 11. the range of wavelengths or frequencies over which electromagnetic radiation extends
- 13. a quantum of electromagnetic radiation, the smallest unit of light
- 14. a lens having at least one surface that curves outward
- 15. casting back a light or heat, mirroring, giving back or showing an image
Down
- 2. electromagnetic radiation with longer wavelengths of those than visible light
- 4. a line that intersects a system of lines
- 6. the angles that occupy the same relative position at each intersection where a straight line crosses two others
- 7. a lens having at least one surface that curves inward
- 8. electromagnetic radiation with wavelengths shorter than those of visible light
- 10. two exterior angles on opposite sides of a transversal which lie on different parallel lines
- 12. the distance between two successive points in a wave