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Question

# An object is placed 40 cm infront of a concave mirror of focal length 20 cm. The image formed is

A
real, inverted and of same size
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B
real, inverted and smaller in size
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C
virtual, erect and larger in size
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D
virtual, erect and smaller in size
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Solution

## The correct option is A real, inverted and of same sizeGiven f=20 cm for concave mirror ⇒R=2f=40 cm Since radius of curvature is 40 cm, and object is placed there. Hence object is at centre of curvature ′C′. ⇒ Image formed will be at ′C′, real, inverted and of same size as that of object.

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