Physics

Problem

Which one of the following gives the minimum resolvable distance

d_{\text{min}}

of an optical microscope in terms of the wavelength

\lambda

of light and the numerical aperture

\text{NA}

? a)

\dfrac{\lambda}{\text{NA}}

\dfrac{\lambda}{2\,\text{NA}}

\dfrac{\lambda\,\text{NA}}{2}

0.61\,\dfrac{\lambda}{\text{NA}}