1. Jan 12, 2007 #1

   Johnny_99

   

   I do not know where to ask this question: For a lens (converging or Diverging), How do i know if magnification is positive or negative?

    

   Johnny_99, Jan 12, 2007
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3. Jan 12, 2007 #2

   berkeman

   

   Staff: Mentor

   Positive for converging, negative for diverging.
   
   http://en.wikipedia.org/wiki/Lens_(optics)

    

   berkeman, Jan 12, 2007

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