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

Solution

## The correct option is B Concave mirror of radius of curvature 12 cmErect and enlarged image can produced by concave mirror. IO=ff−u⇒+3+1=ff=(−4)⇒f=−6cm⇒R=2f=−12cmPhysics

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