A man stands 4m in front of a plane mirror. If the mirror is moved 1m towards the man, the distance between him and his new image is?
Answer Details
The distance between a person and their image in a plane mirror is equal to twice the distance from the person to the mirror.
Before the mirror was moved, the distance between the man and his image was:
2 * 4m = 8m
After the mirror was moved 1m towards the man, the new distance from the man to the mirror is:
4m - 1m = 3m
So, the new distance between the man and his image is:
2 * 3m = 6m
So, the distance between the man and his new image is 6m