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Homework Help: Diffraction Grating

  1. Sep 22, 2016 #1
    • Member advised to use the homework template for posts in the homework sections of PF.
    You know when you have diffraction gratings, you have to measure the angle between center and first order/maxima right? My question is: can the angle be 90°? Or is it always less than that?
    d sin θ = nλ

    Thank you!
     
    Last edited: Sep 22, 2016
  2. jcsd
  3. Sep 22, 2016 #2

    kuruman

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    Hi tenzinlhazey and welcome to PF

    :welcome:

    According to the equation, the angle can be 90o. If that were the case, where would the maximum appear?
     
  4. Sep 22, 2016 #3
    Aww thank you :) yes, I m not sure where would the maximum appear. :/
     
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