What is the approximate size of the smallest object on the earth that astronauts can resolve by eye when they are orbit

What is the approximate size of the smallest object on the earth that astronauts can resolve by eye when they are orbiting 250 km above the earth? assume ? = 634 nm and a pupil diameter is 5.40 mm. (in this problem, you may use the rayleigh criterion for the limiting angle of resolution of an eye.)?

Asked on September 7, 2017 in No Category.
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