Nature of Waves-P5

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  • Created by: Shannon
  • Created on: 28-05-13 12:41
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  • Nature of Waves
    • Constructive interference-crest meets crest, increased amplitude, path difference (half wavelengths) is even
      • In phase
    • Destructive interference-crest meets trough out of phase, wave amplitudes cancel to give zero, path difference (half wavelengths) is odd
    • Coherent light- in phase, same amplitude and frequency
    • Polarisation of light-at right angles to the wave's motions
      • All electromagne-tic waves can be plane polarised
      • Polaroid glasses reduce glare


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