How do eyepieces with the smallest focal lengths change a telescope's overall magnification?
A) The smaller the eyepiece focal length,the greater the magnification.
B) The smaller the eyepiece focal length,the smaller the magnification.
C) The magnification does not depend at all on the eyepiece's focal length.
D) The answer depends on whether you are using a reflecting or refracting telescope.

Question

Quizplus · Accepted Answer

The magnification of a telescope is calculated by dividing the focal length of the telescope by the focal length of the eyepiece. Therefore, the smaller the eyepiece focal length, the greater the magnification.

How Do Eyepieces with the Smallest Focal Lengths Change a Telescope's