In telescopes designed for any wavelength of electromagnetic radiation,the angular resolution is WORSE for:
A) larger-diameter lenses or mirrors or radio dishes and longer-wavelength radiation.
B) larger-diameter lenses or mirrors or radio dishes and shorter-wavelength radiation.
C) smaller-diameter lenses or mirrors or radio dishes and shorter-wavelength radiation.
D) smaller-diameter lenses or mirrors or radio dishes and longer-wavelength radiation.

Question

Quizplus · Accepted Answer

The angular resolution is directly proportional to the wavelength of the radiation and inversely proportional to the diameter of the lens or mirror or radio dish. Therefore, smaller-diameter lenses or mirrors or radio dishes and longer-wavelength radiation provide worse angular resolution.

In Telescopes Designed for Any Wavelength of Electromagnetic Radiation,the Angular