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Question

An object 1 cm tall is placed 4 cm infront of a mirror. In order to produce an upright image of 3 cm height one needs a


A
Convex mirror of radius of curvature 12 cm
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B
Concave mirror of radius of curvature 12 cm
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C
Concave mirror of radius of curvature 4 cm
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D
Plane mirror of height 12 cm
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Solution

The correct option is B Concave mirror of radius of curvature 12 cm
Erect and enlarged image can produced by concave mirror.
IO=ffu+3+1=ff=(4)f=6cmR=2f=12cm

Physics

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