Mirror reflection - seeing full body image · CAP 2004 #Q1
Physics · optics
Problem
You are standing upright in a room in front of a vertical mirror. In this mirror, you can see from your position only the upper two-thirds of your body. You wish to see the entire length of your body reflected in the mirror. Which combination of the following three courses of action will achieve this?
(I) Move away from the mirror;
(II) move toward the mirror;
(III) use a mirror whose height will allow you to see your whole image when you are at your initial position.
(a) (I) only; (b) (II) only;
(c) (III) only; (d) either (I) or (III).