The MAIN Reason That the Angular Resolution of a 20-M-Diameter

The MAIN reason that the angular resolution of a 20-m-diameter radio telescope is worse than that of a 0.5-m-diameter optical telescope is that:

A) angular resolution becomes worse as wavelength decreases.
B) angular resolution becomes worse as wavelength increases.
C) an optical mirror suffers from chromatic aberration.
D) angular resolution becomes worse as mirror size increases.

Correct Answer:

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