An astronomical telescope has a magnifying power of 200$\times$ when operated with a 3.50 cm eyepiece.What is the focal length of the objective of this telescope?
A) 204 cm
B) 196 cm
C) 700 cm
D) 57.0 cm
E) 30.0 cm

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The Answer of An astronomical telescope has a magnifying power of 200$\times$ when operated with a 3.50 cm eyepiece.What is the focal length of the objective of this telescope?
A) 204 cm
B) 196 cm
C) 700 cm
D) 57.0 cm
E) 30.0 cm

An Astronomical Telescope Has a Magnifying Power of 200 ×\times× When Operated with a 3

An Astronomical Telescope Has a Magnifying Power of 200 $\times$ When Operated with a 3