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  • Created by: Emma
  • Created on: 09-05-13 11:28
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  • Waves
    • Transverse
      • Vibrate at right angles to the direction of the wave
      • Electromagnetic waves
      • Displacement against distance graphs
      • Displacement against time graphs
    • Longitudinal
      • Sound
      • Vibrate along the direction of travel
      • Compressions and rarefractions
      • Can't go through a vacuum
    • Polarisation
      • Waves only oscillate in one direction
      • Polarising filters only transmit vibrations in one direction
      • Can only happen for transverse waves
      • When light reflects it is partially polarised
      • When viewing a reflected ray through a polarising filter...
      • ...The intensity of the light leaving the filter changes with the orentation of the filter


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