Lights and Lasers Jack J Cooney

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Across
  1. 2. intersecting a system of lines
  2. 3. distance between corresponding points of two consecutive waves
  3. 5. the number of crests of a wave that move past a given point in a given unit of time
  4. 7. when two lines are crossed by another line
  5. 8. electromagnetic radiation with wavelengths shorter than visible light
  6. 14. two exterior angles on opposite sides of a transversal which lie on different parallel lines
  7. 15. a particle representing a quantum of light or other electromagnetic radiation
Down
  1. 1. a lens that disperses light
  2. 4. the range of wavelengths or frequencies over which electromagnetic radiation extends.
  3. 6. a lens that focuses light
  4. 9. an invisible light similar to that of a gamma ray or ultraviolet light
  5. 10. the apparent enlargement of an object by an optical instrument
  6. 11. a device that generates an intense beam of coherent monochromatic light (or other electromagnetic radiation) by stimulated emission of photons from excited atoms or molecules.
  7. 12. the throwing back by a body or surface of light, heat, or sound without absorbing it.
  8. 13. the fact or phenomenon of light, radio waves, etc., being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density