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A 5cm mirror is just large enough to show the whole image of a tree when held 20 cm

  1. Nov 24, 2012 #1
    1. The problem statement, all variables and given/known data

    A 5cm mirror is just large enough to show the whole image of a tree when held 20 cm from the eye of the observer whose distance to the tree is 100 m. What is the height of tree?


    2. Relevant equations

    n/a



    3. The attempt at a solution

    n/a
     
  2. jcsd
  3. Nov 24, 2012 #2

    tiny-tim

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    welcome to pf!

    hi sofianets! welcome to pf! :smile:
    start by drawing the image :wink:

    (and the mirror and the eye and the tree, of course)
     
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