Question

Decreasing a telescope's eyepiece focal length will _____.

Answer 1

Answer:

increase magnification

Explanation:

Answer 2

I believe the correct answer from the choices listed above is the first option. Decreasing a telescope's eyepiece focal length will increase magnification. The magnification of the telescope image is (focal length of the objective) divided by (focal length of the eyepiece). Hope this answers the question.