Reflections Small
Posted on Thursday, August 12th, 2010 at 6:38 amWhat angle should mirror be tilted to see reflection of your eyes?
You stand 1.25 m in front of a wall and gaze downward at a small vertical mirror mounted on it. In this mirror you can see the reflection of your shoes. If your eyes are 1.45 m above your feet, through what angle should the mirror be tilted for you to see your eyes reflected in the mirror? (The location of the mirror remains the same, only its angle to the vertical is changed.)
Tan(angle) = (1.45/2)/1.25 = .58 > angle = 30.1 degrees
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