The minimum height of a plane mirror to see the full image of a person is equal to ______.
Q1. The minimum height of a plane mirror to see the full image of a person is equal to ______.
Answer: half the height of the person
Explanation: Due to the law of reflection, a plane mirror needs to be only half the viewer's height to show a full-length image, because light from the feet reflects at an angle covering the bottom half of the body.