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What is the space between two consecutive grooves on the CD

  1. Oct 1, 2007 #1
    Can you tell me how to perform this experiment ? .. and also prove that it's true.
    I don't understand it.
    Thank you.
     
    Last edited: Oct 1, 2007
  2. jcsd
  3. Oct 1, 2007 #2
    note that equation 3.10: for diffraction grating, the condition for maxima in the interference pattern at the angle a is d.sina=m.lambda
    (d = slit spacing. m=0,1,2... - order number, lambda=wavelength)
     
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