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How far below the top edge does the ray strike the mirror?

  1. Feb 15, 2009 #1
    1. The problem statement, all variables and given/known data
    A light ray leaves point A in the figure, reflects from the mirror, and reaches point B. (Intro 1 figure) figure attached

    How far below the top edge does the ray strike the mirror?

    2. Relevant equations



    3. The attempt at a solution

    im not sure exactly where it says to mark?
     

    Attached Files:

  2. jcsd
  3. Feb 16, 2009 #2

    tiny-tim

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    Science Advisor
    Homework Helper

    Hi rayhan619! :smile:

    You have to mark the point where the light hits the mirror …

    either use a theorem about reflection angles,

    or draw the image of one and join it to the other. :wink:
     
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