Question

give examples where you find numerous images in your daily life

Answer 1

In saloon.
in a trail room of a shopping complex.

in the given examples, two mirrors are arranged in parallel and hence causes numerous images.

Answer 2

When two mirrors are kept at an angle and an object placed in between the mirrors, multiple images are formed due to reflection from one mirror on to the other. The number of images of the object formed depends on the angle between the two mirrors.

When the angle between the two mirror is 90° three images are formed which can also be verified using the given equation.