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The focal length of convex tens is f and...

The focal length of convex tens is `f` and the distance of an object from the principal focus is x. The ratio of the size of the real image to the size of the object is

A

`((f+x))/(f)`

B

`(f)/(x)`

C

`sqrt((f)/(x))`

D

`(f^(2))/(x^(2))`

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