You are given three mirrors of different types. How will you identify each one of them?

You are given three mirrors of different types. How will you identify each one of
them?
Answer:

The three different types of mirrors can be identified by forming the images.

Plane mirror forms an erect image which is of the same size as the object. The image formed by plane mirror cannot by obtained on a screen, i.e, it is virtual.
Concave mirror forms both real and virtual images. The image can be smaller or larger in size than the object.
Convex mirror always produces virtual and upright images. The size of the image is always smaller than the object.