Dentists use a ____ mirror to magnify the image of the tooth of a patient.

concave

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convex

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plane

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parabolic convex

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Solution

The correct option is A
concave

Dentists use concave mirrors to magnify the image of the tooth of the patient. When the mirror is held in such a way that the tooth lies between the focus and the pole of the mirror, it forms a virtual and enlarged image of the tooth. This helps the dentist to closely examine the tooth.

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Similar questions

Match the following: [5 MARKS]

Column I	Column II
(a) A plane mirror	(i) Used as a magnifying glass.
(b) A convex mirror	(ii) Can form the image of objects spread over a large area.
(c) A convex lens	(iii) Used by dentists to see an enlarged image of teeth.
(d) A concave mirror	(iv) The image is always inverted and magnified.
(e) A concave lens	(v) The image is erect and of the same size as the object.
	(vi) The image is erect and smaller in size than the object.

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