Chapter 23, Problem 1P

To determine

When we look at yourself in a plane mirror, we see same amount of our body, whether you are close to the mirror or far away. Use ray diagrams to show why this should be true.

Answer to Problem 1P

Solution:

Draw in explanation

Explanation of Solution

As we know that the angle of incidence must equal to the angle of reflection, from ray diagrams that the ray that reflects to our eye must be as far below the horizontal line to the reflection point on the mirror as the top is above the line, regardless of our position.