Question

when do we get multiple reflections ?​

Answer 1

When two mirrors are parallel to each other, the number of reflections is infinite. Placing one mirror at a slight angle causes the reflections to curve. Using more than two mirrors increases the number of reflections, but what you see depends on where you stand.

Answer 2

Answer:

Multiple reflections are used in periscopes. Periscopes are used in submarines, war tanks and by solders in bunkers to see objects that are not visible directly. In a barber's shop, we see the back of the head using multiple reflections of two mirrors.

I hope it's helpful for you ✌️