Two stars must be separated if they're to be resolved for all wavelengths of visible light.Which principle can be used to determine the minimum angular separation of the two stars in order for them to be resolved?

Question

Quizplus · Accepted Answer

The correct principle for determining the minimum angular separation of two stars in order for them to be resolved is the Rayleigh criterion, which is related to the diffraction limit of a telescope or optical system. None of the options provided (Huygens' Principle, Fermat's Principle, Snell's Law of Diffraction) directly describe this criterion.

Two Stars Must Be Separated If They're to Be Resolved