16. A spy satellite in orbit at an altitude of 200 km has a mirror of diameter 50 cm. Assuming that it is limited only by diffraction, what is the closest distance between two bodies on the earth's surface for them to be resolved? Take λ = 400 nm.
(A) 19.5 cm
(B) 21.2 cm
(C) 18.0 cm
(D) 10.3 cm
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統計: A(0), B(1), C(0), D(0), E(0) #3384050
統計: A(0), B(1), C(0), D(0), E(0) #3384050