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Question

The mirror used by dentists to concentrate light on the tooth to be examined is a:

A
Concave mirror
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B
Normal triangular mirror
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C
Convex mirror
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D
Plane mirror
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Solution

The correct option is A Concave mirror
When the object is between pole and focus, a concave mirror produce erect, enlarged image. That is why concave mirror is used by dentists in such a way that the tooth to be examined is within focal length of mirror and forms magnified image which helps doctor too examine tooth easily.
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