Question: A microscope with an 8.0 -mm-focal-length objective has a tube length of (16.0 mathrm{~cm}). For the microscope to be in focus, how far should the

A microscope with an 8.0 -mm-focal-length objective has a tube length of $16.0 \mathrm{~cm}$. For the microscope to be in focus, how far should the objective lens be from the specimen?

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