Optics

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Across
  1. 4. The science of light properties and behavior
  2. 6. The region where light is obstructed or blocked
  3. 10. wave signals that are not generated from digital information
  4. 12. Used to transmit information from a remote control to a television
Down
  1. 1. Used to transmit information between cellphones or between an internet router and a computer
  2. 2. Code A unique 3-signal combination of dots and dashes codes for each letter of the alphabet and numbers 0 through 9
  3. 3. Wave signals generated electronically from digital information
  4. 5. Matter that allows some light to pass through
  5. 7. Waves used to transmit television and radio programs
  6. 8. A wave with a specific pattern that carries information
  7. 9. Matter that allows all light to pass through
  8. 11. Matter that does not allow light to pass through