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Why reflection causes polarisation of light

  1. Apr 17, 2012 #1
    Hello all

    I know that polarisation of light can occur from reflection, and when the reflected ray is 90degrees from the refracted ray the relfected light is 100% plane polarised.
    So, my question is why is it that reflection causes polarisation of light?

    Thanks
     
  2. jcsd
  3. Apr 17, 2012 #2
    because the light on the vertical plane were anihilated through phase differential.
     
  4. Apr 18, 2012 #3
    Ok, and what is phase differential?
     
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