The aperture diameter of a telescope is 5m. The separation between the moon and the earth is 4 × 10 5 km. With light of wavelength of 5500 Å, the minimum separation between objects on the surface of moon, so that they are just resolved, is close to :
Text Solution
Verified by ExpertsThe correct answer is:
D
θ = 
distance = O 1 O 2 = d θ = 
distance = O 1 O 2 = 
≈ 57.5 m
∴ answer from options = 60m
(minimum distance )
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