Problem: You have lenses with the following focal lengths: f = 25 mm, 50 mm, 100 mm, and 200 mm. In what arrangement would you use these lenses to get the highest-power telescope? fo = 200 mm, fe= 25 mm fo = 25 mm, fe= 200 mm fo = 25 mm, fe= 50 mm fo = 50 mm, fe= 25 mm

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Magnification in a telescope is given by the ratio of the focal length of the eyepiece to the focal length of the eyepiece.

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Problem Details

You have lenses with the following focal lengths: f = 25 mm, 50 mm, 100 mm, and 200 mm. 

In what arrangement would you use these lenses to get the highest-power telescope? fo = 200 mm, fe= 25 mm fo = 25 mm, fe= 200 mm fo = 25 mm, fe= 50 mm fo = 50 mm, fe= 25 mm

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