You have available lenses of focal lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. If you could use any two of these lenses to build a telescope, what is the maximum magnification you could achieve for
Comfortable viewing of a planet?
A) 6.0
B) 8.0
C) 2.0
D) 4.0

Question

Quizplus · Accepted Answer

The magnification of a telescope is given by the ratio of the focal length of the objective lens to the focal length of the eyepiece lens. To achieve maximum magnification, use the longest focal length for the objective (16.0 cm) and the shortest for the eyepiece (2.0 cm), resulting in a magnification of 16.0/2.0 = 8.0.

You Have Available Lenses of Focal Lengths 2