A point object P is placed before two mirrors at right angles as shown. How many total number of images will be formed due to reflections from these mirrors?

Question

Quizplus · Accepted Answer

Two mirrors at right angles will form three images. The first image (P') will be formed due to reflection from the mirror closest to the point P. This image will be at the same distance but on the opposite side of the mirror as the object. The second image (P'') will be formed due to reflection from the mirror perpendicular to the first mirror. This image will be at the same distance and on the same side of the mirror as the object. The third image (P''') will be formed due to reflection from both mirrors. This image will be at the intersection point of the mirrors and will be farther away from the mirrors than the object. Therefore, the total number of images formed will be three.

A Point Object P Is Placed Before Two Mirrors at Right