The mirror formula is the same,irrespective of whether the mirror is a convex mirror or a concave mirror.

What can be said about the magnification of an image formed by a convex mirror?

$A$ student wants to project the image of a candle flame on a screen $60\, cm$ in front of a mirror by keeping the flame at a distance of $15\, cm$ from its pole.
$(a)$ Write the type of mirror he should use.
$(b)$ Find the linear magnification of the image produced.
$(c)$ What is the distance between the object and its image?
$(d)$ Draw a ray diagram to show the image formation in this case.

An object of size $7.0\, cm$ is placed at $27\, cm$ in front of a concave mirror of focal length $18\, cm$. At what distance from the mirror should a screen be placed,so that a sharp focussed image can be obtained? Find the size and the nature of the image.

The mirror formula describes the relationship between the height of the image and the height of the object.

The magnification equation is the same for both convex and concave mirrors.