Question: A 1.0-cm-diameter microscope objective has a focal length of (2.8 mathrm{~mm}). (mathrm{t}) is used in visible light with a wavelength of (550 mathrm{~nm}). a. What

A 1.0-cm-diameter microscope objective has a focal length of $2.8 \mathrm{~mm}$. $\mathrm{t}$ is used in visible light with a wavelength of $550 \mathrm{~nm}$.

a. What is the objective's resolving power if used in air?

b. What is the resolving power of the objective if it is used in an oil-immersion microscope with $n_{\text {oil }}=1.45$ ?

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