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.