Q. 41

In order to obtain a real image twice the size of the object with a convex lens of focal length 15 cm, the object distance should be:
A. More than 5 cm but less than 10 cm

B. More than 10 cm but less than 15 cm

C. More than 15 cm but less than 30 cm

D. More than 30 cm but less than 60 cm

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