Question: A telescope having an objective lens with a diameter of 10.0 cm will be used to view two equally bright small sources of 550-nm light.

A telescope having an objective lens with a diameter of 10.0 cm will be used to view two equally bright small sources of 550-nm light.

(a) Determine the angular separation of the sources if they are just resolvable. Use Rayleigh’s criterion.

(b) How far apart can they be at a distance of 1000 km?

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