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Curved mirror calculations.

  1. Feb 23, 2008 #1
    1. The problem statement, all variables and given/known data
    An object is magnified, by a factor; of 5, in a concave mirror. The mirror has a focal length of 20cm.
    Calculate ALL possible positions of the object.


    2. Relevant equations
    M=Hi/Ho=Di/Do
    M=V/U
    1/F=1/V+1/U


    3. The attempt at a solution
    1/20=1/V + 1/U
    -1U=20V/V
    U=-20
    V=10
     
  2. jcsd
  3. Feb 24, 2008 #2
    Would I be correct?
     
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