State the kind of mirror used
(a) by a dentist
(b) as a street light refelector
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(A) A mouth mirror used by dentist is concave mirror which provide magnified , upright images. These mirrors are used for various purposes such as indirect vision by dentist, retraction of cheek or soft tissues, reflecting light on desired surface etc.
(B) A convex mirror is used as a reflector in a street light because it diverges rays of light over large area. A convex mirror is used as a reflector in a street light because it diverges rays of light over large area.
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