Which type of mirror could be used as a dentist's mirror?

A concave mirror could be used as a dentist's mirror as it produces a magnified image of a tooth.

Explanation

A dentist uses a convex mirror because it forms a magnified or enlarged image of an object when it is held within the focus of a concave mirror.

A concave mirror is a mirror that is curved inward in the middle. It is also known as converging mirrors, due to the fact that when parallel incident rays fall on the surface of the mirror, the rays will reflect and meet at a particular point and form the

image. Depending on the position of the object with respect to the mirror, the types of images it forms are real, inverted as well as virtual and erect image, also the size of the images formed are magnified, diminished as well as the same size as that of the object.