Question:
A telescope has an objective lens of 20 cm diameter and is
Last updated: 6/11/2023
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A telescope has an objective lens of 20 cm diameter and is situated at a distance of 2 km from two objects The minimum distance between the two objects which can be resolved by the telescope when mean wavelength of light is 6000 is order of 1 7 m 3 7 mm 2 7 cm 4 7 km