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We have probably all had the experience of standing between two parallel plane m

ID: 1377037 • Letter: W

Question

We have probably all had the experience of standing between two parallel plane mirrors, and seeing countless images of ourselves stretching off to infinity in both directions. We'll explore that here. The picture below shows two large plane mirrors, at x = 0 m and at x = +3 m. You are represented by the arrow at x = +2 m. You are facing to the left, Looking toward the mirror at x = 0 m. [2 points] (a) At what locations between x = -10 m and x = +10 m are there images of you that are facing to the right? [2 points] (b) At what locations between x = -10 m and x = + 10 m are there images of you that are facing to the left?

Explanation / Answer

-3 m

-8 m

4 m

10 m

8m

-4 m

-10 m

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