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Optics - complete this ray diagram

  1. Dec 6, 2006 #1
    1. The problem statement, all variables and given/known data
    For an optical microscope, complete a ray diagram for an objective lens and relate the relate the relative distances to the lens equations. If you want to increase the magnification, should the objective lens have a shorted or longer focal length (illustrate this on the same figure in a different color)?

    2. Relevant equations
    lens equation:
    1/u +1/v=1/f

    3. The attempt at a solution
    For an optical microscope, there are 2 converging objective lens. One will have a virtual image, and one will have a real image. In that case, which objective lens is the one that the question wants?
  2. jcsd
  3. Dec 7, 2006 #2


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    The objective lens of a microscope is the one near the object being magnified. The other converging lens is the eyepiece.
  4. Jan 1, 2007 #3
    thank you very much!
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