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A lens is held directly above a pencil lying on a floor and forms and image of it. After the lens has been moved vertically a distance equal to its focal length it forms image of equal size to the previous image. If the length of the pencil is 8 centimetre the length of the image is?

A lens is held directly above a pencil lying on a floor and forms and image of it. After the lens has been moved vertically a distance equal to its focal length it forms image of equal size to the previous image. If the length of the pencil is 8 centimetre the length of the image is?

Grade:10

1 Answers

Saurabh Koranglekar
askIITians Faculty 10336 Points
2 years ago
Dear student

if the length of the image is the same as that of the length of the object then it will be also 8cm

Regards

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