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Newton's rings

  1. Jan 9, 2015 #1
    If light is transmitted at a point of contact in Newton's rings. The central spot will be darker or brighter?
     
  2. jcsd
  3. Jan 10, 2015 #2

    CWatters

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    If you understand how Newtons rings are formed, what do you think and why?
     
  4. Jan 10, 2015 #3
    Actually I can't understand what the word "transmission at contact point" here means. I know that there is thin layer of air at contact point due to which there is phase shift of 180° which results in dark point at mid.
     
  5. Jan 12, 2015 #4

    CWatters

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