The Main Reason That the Angular Resolution of a 20-M

question 192

Multiple Choice

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.

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