Which property of a concave mirror makes it suitable for a dentist?
AIt produces a diminished image
BIt produces a large magnification
CIt gives a wider field of view
DIt shows objects and images easily
Answer & Solution
Correct answer: B. It produces a large magnification
1. A dentist needs to see small detail inside the mouth clearly.
2. A concave mirror magnifies when the object lies between the principal focus and the pole.
3. Held that close to a tooth, the mirror gives a large magnification of it.
4. A diminished image would make the detail harder to see, which is the opposite of what is needed.
5. A wide field of view is the property of a convex mirror, which is why those are used as driving mirrors instead.
_Source: NECTA CSEE 2021 Physics 031, Question 1: Multiple Choice, item (ii)_
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