A 2.0-cm -diameter spider is 2.8 m from a wall. Determine the focal length f of a lens that will make a half-size image of the spider on the wall. Determine the position s′ (measured from the wall) of this lens.
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A 2.0-cm -diameter spider is 2.8 m from a wall. Determine the focal length f of a lens that will make a half-size image of the spider on the wall. Determine the position s′ (measured from the wall) of this lens.
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