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Problem 23.11 Light reflection

  • Thread starter mtbgymnast
  • Start date
  • #1
1. Homework Statement

It is 171 cm from your eyes to your toes. You're standing 210 cm in front of a tall mirror.

How far is it from your eyes to the image of your toes?

2. Homework Equations

?

3. The Attempt at a Solution

The answer which I got from the back of the book is 433cm.

I have the answer. Whoopie. But I have no idea how to do get the answer on my own. I know that light will hit the mirror and bounce off at an angle.
The angle of incidence is the angle between the incoming light and the normal.
The angle of reflection is the angle between the reflected ray of light and the normal.
If some one could please explain to me how to go about this problem I would greatly appreciate it.
Thanks :smile:
 
Last edited:

Answers and Replies

  • #2
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your toes are 210 cm in front of the mirror. The image of your toes is 210 cm behind the mirror. (draw a picture)
 

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