Question

what is the maximum angular separation between two stars if telescope is used to observe them with an object of aperture 20cm ? The wavelength of light used is 5900 A​

Answer 1

angular separation=1.22a/d

a=5900×10^-10 m

d=20×10^-2 m

angular separation=1.22×5900×10^-10/

20×10^-2

=3.599×10^-6

Answer 2

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