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Solve the all parts of given question:

Question: A compound microscope uses a 77.0mm lens as the objective and a 2.2cm lens as the eyepiece. The specimen will be mounted 102mm from the objective.

Question I: Determine the barrel length.

L = ____ m

Question II: Determine the total magnification produced by the microscope.

M total =

Please show me how work it out above question.

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