Which of the following primarily determines the resolution of a telescope?
A)the barrel length
B)the focal length of the objective
C)the diameter of the objective
D)the diameter of the eyepiece

Question

Quizplus · Accepted Answer

The diameter of the objective primarily determines the resolution of a telescope because it determines the amount of light that the telescope can gather and the amount of detail that can be resolved. A larger diameter objective will allow for more light to enter the telescope, which will result in a brighter and sharper image.

Which of the Following Primarily Determines the Resolution of a Telescope