Radio dishes are large in order to:
A)attract funding from NASA and the NSF.
B)give greater magnification.
C)increase their angular resolution and collect the very weak radio photons.
D)increase the range of waves they can collect.
E)detect shorter waves than optical telescopes for superior resolution.

Question

Quizplus · Accepted Answer

Radio dishes are large in order to increase their angular resolution and collect the very weak radio photons. This is because radio waves have a longer wavelength than visible light, and therefore require a larger collecting area to achieve the same resolution. Radio dishes need to be large to increase their angular resolution and collect the very weak radio photons because their longer wavelengths make them more difficult to detect than optical photons. The larger the dish, the more photons it can collect and the more detail it can resolve in the image.

Radio Dishes Are Large in Order To