A microscope with a tube length of 200 mm achieves a total
A microscope with a tube length of 200 mm achieves a total magnification of 400x times with a 20x times objective and a 20x times eyepiece. The microscope is focused for viewing with a relaxed eye.
How far is the sample from the objective lens?
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a microscope with a tube length of 200 mm achieves a total magnification of 400x times with a 20x times objective and a
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