Question

Which type of mirror is used by a dentist?

• A. plane
• B. convex
• C. concave

Answer 1

The correct option is C

concave

Explanation of correct option:

In the case of option C,

1. Convex mirrors make things look smaller, but concave mirrors enlarge the pictures. The surface of a concave mirror becomes curved inward and outwardly.
2. Concave mirrors are utilized by dentists because they are converging mirrors that reflect light to the focus point. Dentists can use this sort of mirror to see the tooth more clearly if there is an inflammation or a bacterial assault.

The explanation for incorrect options:

In the case of option A,

1. The flat surface provides an erect visual picture of a genuine item by reversing the front and rear.
2. The image in a plane mirror is clearly not a genuine, physical item. This is referred to as a virtual picture by scientists. The virtual picture will alter depending on the entity's or observer's distance from the mirror.

In the case of option B,

1. In general, a convex mirror provides an upright and smaller picture of the thing.
2. Convex mirrors create virtual pictures of items scattered across a vast region. Convex mirrors are incapable of producing true pictures.

Therefore, a concave mirror is used by a dentist.