d 18 85 A telescope of objective lens diameter 2m uses light

Last updated: 6/8/2023

d 18 85 A telescope of objective lens diameter 2m uses light of wavelength 5000A for viewing stars The minimum angular separation between two stars whose image is just resolved by their telescope is a 4 x 10 rad b 0 25 x 10 6 rad c 0 31 x 10 rad d 5 x 10 rad 5 The focal lengths of the obi 90