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Uses of Spherical Mirror Based on the Image Formed

The mirror us...

Question

The mirror used by a dentist to examine the teeth of a person is : (a) convex (b) concave (c) plane (d) any one of the above

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Solution

(b) 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.

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Q. The mirror used by a dentist to examine the teeth of a person is:

(a) convex
(b) concave
(c) plane
(d) any one of the above

Dentists use concave mirrors for examining teeth. When the mirror is placed close to teeth, the image formed is:

Q. Match the following:

(A) Plane mirror	(1) Always virtual, erect and dimnished image
(B) Convex mirror	(2) Image is erect and of the same size as the object
(C) Convex lens	(3) Used by dentists to see enlarged images of teeth
(D) Concave mirror	(4) Used in microscope.

Q. While examining the cavities, a dentist needs to see the virtual and magnified image of the teeth. If the dentist uses a concave mirror, what should be the position of the teeth with respect to the mirror?

Q. Assertion :A dentist uses a concave mirror to examine a small cavity. Reason: A dentist uses a concave mirror which can form a magnified virtual image of an object.

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