What determines the magnification of a telescope image?

Question

Quizplus · Accepted Answer

The magnification of a telescope image is determined by the focal lengths of both the objective and the eyepiece. Magnification can be calculated by dividing the focal length of the objective by the focal length of the eyepiece: magnification = focal length of objective / focal length of eyepiece. Therefore, both the objective and eyepiece contribute to the magnification of the telescope image. The size of the objective mirror or lens can affect other properties of the telescope, such as its light gathering ability and resolving power, but not the magnification.

What Determines the Magnification of a Telescope Image