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A 750 × microscope uses a 0.45-cm-focal-length objective lens. If the tube length is 17.1 cm...

A 750 × microscope uses a 0.45-cm-focal-length objective lens. If the tube length is 17.1 cm , what is the focal length of the eyepiece? Assume a normal eye and that the final image is at infinity, fe≪l.

Express your answer to two significant figures and include the appropriate units.

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