What distance must the lens be movable

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To focus a camera on objects at different distances, the converging lens is moved toward or away from the film, so a sharp image always falls on the film. A camera with a telephoto lens (f = 220 mm) is to be focused on an object located first at a distance of 3.40 m and then at 52.3 m. Over what distance must the lens be movable?

Reference no: EM13258897

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