1. Jan 9, 2015 #1

   oreo

   

   If light is transmitted at a point of contact in Newton's rings. The central spot will be darker or brighter?

    

   oreo, Jan 9, 2015
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3. Jan 10, 2015 #2

   CWatters

   

   Science Advisor

   Homework Helper

   If you understand how Newtons rings are formed, what do you think and why?

    

   CWatters, Jan 10, 2015
4. Jan 10, 2015 #3

   oreo

   

   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.

    

   oreo, Jan 10, 2015
5. Jan 12, 2015 #4

   CWatters

   

   Science Advisor

   Homework Helper

   I believe they are referring to the transmission method of creating rings..
   
   Perhaps have a look at..
   http://www.animations.physics.unsw.edu.au/jw/light/Newton's-rings.html#3b

    

   CWatters, Jan 12, 2015

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