You photograph the image of your little sister, who stands 2 meters in front of a plane mirror. Holding the camera beside her head, the distance to her image is
A)1 meter.
B)2 meters.
C)3 meters.
D)4 meters.
E)none of the above

Question

Quizplus · Accepted Answer

The image of your sister appears the same distance behind the mirror as she is in front of it, so 2 meters behind. Since she is 2 meters in front of the mirror, the total distance to her image is 2 meters (in front) + 2 meters (behind the mirror) = 4 meters.

You Photograph the Image of Your Little Sister, Who Stands