How does the resolution of a telescope depend on its focal length?
A) The longer the focal length, the better the resolution.
B) The longer the focal length, the worse the resolution.
C) There is no relation between resolution and focal length.

Question

Quizplus · Accepted Answer

The resolution of a telescope depends on its aperture and focal length. Generally, the longer the focal length, the better the resolution. This is because longer focal lengths result in a narrower field of view, which reduces the effects of atmospheric disturbance and increases detail in the image.

How Does the Resolution of a Telescope Depend on Its