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in Physics by (66.1k points)

A concave lens has focal length of 20 cm. At what distance from the lens a 5 cm tall object be placed so that it forms an image at 15 cm from the lens? Also calculate the size of the image formed.

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Best answer

F = -20 cm, ho = 5 cm, v = -15 cm.

Image is diminished and virtual.

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