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Emma is observing an image of a pencil t...

Emma is observing an image of a pencil through a convex lens, if she wants to see the erect image of the pencil she should place the pencil

A

at the principal focus `(F_(1))` of the lens

B

at the distance `2F_(1)` from the lens

C

at the distance less than the focal length of the lens

D

any where beyond the point `2F_(1)`

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