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Solve for the focal distance

  1. Mar 22, 2013 #1
    I cannot figure out focal distance and the like, is there anyway I can get a walkthrough?
    the radius of curvature (R) to 0.7 m and the lens’s refractive index (n) to 1.8 . anyone?
     
    Last edited: Mar 22, 2013
  2. jcsd
  3. Mar 22, 2013 #2

    tiny-tim

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    Welcome to PF!

    Hi SFBKR! Welcome to PF! :smile:
    What equations do you think will help?

    Show us how far you get.
     
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