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Angle of refraction

  1. Dec 21, 2007 #1
    Red light travels from air into liquid at an angle of incidence of 390 and an angle of reflection of 170. Calculate the wavelength of the red light in the liquid if its wavelength in air is 750 nm

    can you give me some hint for this one too? :cry:
  2. jcsd
  3. Dec 21, 2007 #2

    Shooting Star

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    The frequency does not change. Is this hint good enough?
  4. Dec 22, 2007 #3
    double post...
  5. Dec 22, 2007 #4

    Shooting Star

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    Is it? I think the OP had posted another post with the title "another...", but the topic was different.

    Dear rhxoehwhfh,

    Please sacrifice originality for practicality and try to give your posts names dealing with the subject, for everybody's benefit.
  6. Dec 22, 2007 #5
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