PHYSICS - Refraction

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  • Created by: bocceer
  • Created on: 26-04-16 22:12


  • Waves travel at different speeds in different substances (mediums)
  • Waves change speed when they pass a boundery between two different mediums             e.g. air and gas
  • Light travels faster in mediums that are less dense. It is the fastest in a vaccume (sound is the opposite)
  • This change in speed causes a change in direction and this effect is…


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