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Masha is using a microscope to study Bascillus subtilis, which
is a rod-shaped bacterium found in the gastrointestinal tract
certain mammals. The objective lens she is using has a focal
length fo = 0.45 cm and a diameter D = 1.00 cm. What is the
shortest possible Bascillus subtilis bacterium she can resolve
using this objective lens? Use A
550 nm and assume that
diffraction sets the resolution limit in this case.

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