📝 Multiple Choice Question
General-science
The magnifying power of an astronomical telescope can be increased by:
A
increasing the focal length of the eyepiece
B
decreasing the focal length of the eyepiece
C
increasing the focal length of the objective
D
both b and c
Explanation
Magnification $M = f_o / f_e$. Thus, increasing the objective focal length or decreasing the eyepiece focal length increases magnification.
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