Which of these characteristics of an astronomical telescope is the MOST important for determining the angular resolution?
A) magnifying power of the telescope
B) focal length of the objective lens or mirror
C) focal length of the eyepiece
D) diameter of the objective lens or mirror

Question

Quizplus · Accepted Answer

The diameter of the objective lens or mirror is the most important factor for determining the angular resolution of a telescope. A larger diameter allows the telescope to collect more light and resolve finer details, improving its ability to distinguish objects that are close together in the sky.

Which of These Characteristics of an Astronomical Telescope Is the MOST