Question

# An object is placed at a distance of 20 cm from a convex lens of focal length 10 cm. On the other side of the lens, at what distance from the lens must a convex mirror of radius of curvature 9 cm can be placed in order to have an upright image of the object coincident with it?

A
9 cm
B
20 cm
C
11 cm
D
10 cm
Solution
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#### Option C is correct 0
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