A concave lens has a focal length of -f. An object is placed between f and 2f on the axis. The image is formed at O at 2
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A concave lens has a focal length of -f. An object is placed between f and 2f on the axis. The image is formed at O at 2
A concave lens has a focal length of -f. An object is placed between f and 2f on the axis. The image is formed at O at 2f. Between fand the lens. at f. O at a distance greater than 2f from the lens.
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