P1.11-Using Light

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  • Created by: zoeshai
  • Created on: 14-01-17 22:40

P1.11 Using Light

Communication

Smoke signals, Flashing lights, Morse code

Morse code is a series of flashes to represent different letters which can be relayed from station to station very quickly. Morse is an early type of digital signal (on and off).

Lasers

  • The waves all have the same frequency
  • All the crests and troughs line up so they are in phase
  • Because of this…

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