Question

image formation when two mirror are placed at 90 degree

Answer 1

If the two mirrors are placed parallel to each other - Infinite number images are formed but if they are not parallel to each other only 1 image will be formed

Answer 2

Heya,

We can find image formed by two mirrors by the formula,
360°/theta - 1
Where theta is the angle between the two mirrors.

So, if two mirrors are placed at 90°, then image formed will be.;

360°/90° - 1 = 4 - 1
= 3

Three images can be formed between two mirrors when they are placed at 90°

Hope this helps...:)