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A bright object and a viewing screen are separated by a distance of 87.6 cm ....

A bright object and a viewing screen are separated by a distance of 87.6 cm . Part A At what location(s) between the object and the screen should a lens of focal length 18.5 cm be placed in order to produce a sharp image on the screen? [Hint: first draw a diagram.] If there is more than one answer, separate them by a comma.

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