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Homework Help: Images from Two Parallel Mirrors

  1. Nov 20, 2007 #1
    1. The problem statement, all variables and given/known data

    Two parallel mirrors that face each other are placed along and perpendicular to the x-axis at x = +11.00 m and x = -11.00 m. Assume that a point source of light is placed on the axis at x = +2.70 m. In principle, there will be an infinite number of images generated. Consider the locations of the four images of the point source with the smallest absolute values of image distance i. Going from left to right (i.e from negative to positive), what is the x-coordinate of the left most image?

    2. What is the x-coordinate of the next image?

    3. What is the x-coordinate of the next image?

    4. What is the x-coordinate of the right most image?

    I really do not know where to start, so any help appreciated
  2. jcsd
  3. Nov 22, 2007 #2


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    Staff Emeritus
    Science Advisor
    Gold Member

    Please show us some effort, so we may help you.

    If you have a single mirror with an object placed at a distance d in front of it, where is the image of this object located? Can you extend this idea to your problem?
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