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)2.0
B)4.0
C)6.0
D)8.0

Question

Quizplus · Accepted Answer

The maximum magnification is achieved by using the lens with the longest focal length as the objective (16.0 cm) and the lens with the shortest focal length as the eyepiece (2.0 cm). Magnification is calculated as the focal length of the objective divided by the focal length of the eyepiece, which in this case is 16.0 cm / 2.0 cm = 8.0.

You Have Available Lenses of Focal Lengths 2