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The place faces of two identical plano-c...

The place faces of two identical plano-convex lenses, each with focal length f are pressed against each other using an optical glue to from a usual convex lens .The distance from the optical centre at which an object must be placed to obtain the image same as the size of the object is

A

80 cm

B

40 cm

C

20 cm

D

160 cm

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The correct Answer is:
B
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AAKASH INSTITUTE ENGLISH-RAY OPTICS AND OPTICAL INSTRUMENTS-ASSIGNMENT (SECTION - A)
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