Physics

Problem

For an astronomical telescope with objective diameter

D

observing light of wavelength

\lambda

, the theoretical minimum angular separation

\theta

that can be resolved is a)

\theta = \dfrac{\lambda}{D}

\theta = 0.61\,\dfrac{\lambda}{D}

\theta = 1.22\,\dfrac{\lambda}{D}

\theta = 1.22\,\dfrac{D}{\lambda}