Question

If two plane mirror are inclined at an angle 90° to each other,how many images of an object are seen?​

Answer 1

The 2 plane mirrors are held at right angles, that is, they are inclined at an angle of 90 degrees.

As we know that if 360/ 90 = 4 is a even no , the no of images is (360/90-1) = 3.