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Determine equation for object distance

  1. Nov 4, 2015 #1
    1. The problem statement, all variables and given/known data
    You wish to use a converging mirror to form an image that is N times larger than the object. R is the radius of curvature of the mirror. At what distance o from the mirror should you place the object? Determine the object distance. Express your answer in terms of N and R. Follow the sign convention.

    2. Relevant equations
    1/f = 1/o + 1/i
    N = -i/o
    f = R/2

    3. The attempt at a solution
    N*o = 1 / (2/R + 1/o)
    2N*o + N =1
    o = ((1-N)/R)(1/2N)
    This appears incorrect though.
  2. jcsd
  3. Nov 5, 2015 #2


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    Science Advisor
    Gold Member

    It is, in fact, incorrect. But what are your reasons for thinking so?
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