Over what distance should the lenses be movable

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To focus a camera on objects at dissimilar distances, the converging lens is moved toward or away from the image sensor, so a sharp image always falls on the sensor. A camera with a telephoto lens (f=200.00mm) is to be focused on an object located first at a distance of 3.5 m and then at 50.0 m.  Over what distance should the lenses be movable?

Reference no: EM13660705

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