Across
- 1. a little higher frequency than visible light
- 3. of Reflection The angle formed by a reflected ray and a perpendicular to the surface at the point of reflection(of a polygon)
- 8. A device that generates an intense beam of coherent monochromatic light (or other electromagnetic radiation) by stimulated emission of...
- 10. A thin straight bar, esp. of wood or metal.
- 11. Spectrum The range of wavelengths or frequencies over which electromagnetic radiation extends
- 14. colors Any of a group of colors from which all other colors can be obtained by mixing.
- 16. waves Low frequency but long wavelength
- 18. Having an outline or surface that curves inward like the interior of a circle or sphere
- 19. Used in cafeterias
- 20. -rays shot from a small whole
- 21. A solid geometric figure whose two end faces are similar, equal, and parallel rectilinear figures, and whose sides are parallelograms.
Down
- 2. light all light u can see
- 4. rays highest frequency
- 5. first layer of the eye
- 6. A particle representing a quantum of light or other electromagnetic radiation. A photon carries energy proportional to the radiation...
- 7. waves Used in baking
- 9. light Polarization (also polarisation) is a property of certain types of waves that describes the orientation of their oscillations. ....
- 12. A solid or hollow object that tapers from a circular or roughly circular base to a point.
- 13. eyeball is too long
- 15. Reflection Total internal reflection is an optical phenomenon that occurs when a ray of light strikes a medium boundary at an angle larger than a...
- 17. Having only interior angles measuring less than 180°.