Light and Optics

1234567891011121314151617181920
Across
  1. 3. A measure of how much radiant power an object emits.
  2. 5. A device that detects light, converting it into an electrical signal.
  3. 8. A piece of glass that has two opposite regular surfaces.
  4. 9. A unit of luminous flux, measuring the total amount of visible light emitted by a source.
  5. 11. Light burning or shining unsteadily.
  6. 14. The bending of light as it passes from one medium to another.
  7. 17. The measure of how much light passes through a material.
  8. 18. Not able to be seen through or not transparent.
  9. 19. Showing luminous colors that seem to change when seen from different angles.
  10. 20. Luminescence produced electrically.
Down
  1. 1. The spreading out of waves as they pass through a narrow aperture.
  2. 2. Lighted by or as if by the sun.
  3. 4. A particle representing a quantum of light or other electromagnetic radiation.
  4. 6. Electromagnetic radiation that maintains a consistent phase relationship with each other.
  5. 7. The spreading of white light into its full spectrum of wavelengths.
  6. 10. A chart or a graph that shows the intensity of light being emitted over a range of energies.
  7. 12. Glowing or dazzling from or as if from great heat.
  8. 13. The dark area formed when light is blocked by an opaque object.
  9. 15. Allow light to pass through an object.
  10. 16. Emission of light by a substance that has absorbed other electromagnetic radiation.