SSC
PHYSICS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Plane
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Convex
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Concave
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None of these
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Detailed explanation-1: -Concave mirrors forms a virtual, magnified and erect image when the object is placed close to it. Hence, dentists use a concave mirror to get a magnified image of the tooth of a patient.
Detailed explanation-2: -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.
Detailed explanation-3: -A concave mirror gives the dentist a magnified reflection of the mouth while also refracting a bit of light. This means the image in the mirror is larger, brighter, and, for the dentist, easier to see.
Detailed explanation-4: -Concave mirrors used by dentists are called “Mouth Mirrors”.