(Answered) A microscope objective has a focal length of 17 mm it forms

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A microscope objective has a focal length of 17 mm. It forms an image at 16 cm from its second focal point. How far from the objective is the object located? Answer in units of cm

What is the magnifying power for a person whose near point is at 25 cm if the focal length of the eyepiece is 54 mm?

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