Home PYQs UPPSC UPPSC MCQs Prelims 2015 (GS Paper I)

Question

The mirror used by the dentists to see the teeth of the patients is:

  1. concave
  2. convex
  3. none of these
  4. plane

Answer:

Option A: concave

Detailed Solution:

The correct answer is “concave”.

Dentists use concave mirrors to see teeth and other areas in the mouth. This is because a concave mirror forms a virtual, erect and enlarged image when the object is placed within focus.