Which of the following mirror is used by a dentist to examine a small cavity in a patient’s teeth?
(A) Convex mirror
(B) Plane mirror
(C) Concave mirror
(D) Any spherical mirror
Answer -
Now, a Concave mirror gives
- Enlarged image when object is between pole and focus
- Parallel ray of light when object is placed at focus
- Converges rays of light at the focus
Since Concave mirror gives an enlarged image.
Thus, a concave mirror is used to examine a small cavity in patient’s teeth
So, the correct
answer is (c)
