Physics, 08.01.2020 11:31, abby4902

An object is placed 15.8 cm in front of a thin converging lens with an unknown focal length. if a real image forms behind the lens with an image distance of 4.2cm what is the focal length of the lens

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An object is placed 15.8 cm in front of a thin converging lens with an unknown focal length. if a re...