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Application of properties of the light

  1. Mar 13, 2008 #1
    you find two unlabelled diffraction gratings in your lab. from purchase records, you know that one grating has 500lines/cm, while the other has 10000lines/cm Given the following equipement, describe how you would determine which is the grating with 10 000lines/cm: red laser, detection screen, the two unknown dffraction gratings. no idea:(..need help
     
  2. jcsd
  3. Mar 14, 2008 #2
    Can anyone help me please....
     
  4. Mar 14, 2008 #3
    Can anyone help me here pleaseeeeeeeeeeeeeeee..:(
     
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