Light Work

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Across
  1. 2. material that allows no light to pass through
  2. 6. image of distant object produced by refraction of light through air layers of different densities
  3. 8. light produced without excessive loss of internal energy
  4. 9. materials that transmit all light
  5. 10. light with more than one wavelength
  6. 11. light waves that vibrate in only one direction
Down
  1. 1. light reflecting back into the first of two materials
  2. 3. technique that produces a 3D image without a lens
  3. 4. materials that transmit some light and block some light
  4. 5. light of only one wavelength with crests and troughs aligned
  5. 7. light produced by heating metal until it glows