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A convex lens of focal length f and a pl...

A convex lens of focal length f and a plane mirror are y distance apart. An object O is kept on the principal axis of the lens at a distance x from the lens. The values of x and y for the final image of O to fall exactly (position and size) on the object O are :

A

`x = f, y = f`

B

`x = f, y = 2f`

C

`x = 2f, y = f`

D

`x = 2f, y = 2f`

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The correct Answer is:
D
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