Two lens with different focal length are made as a telescope. If the magnification is 16 and the length of telescope is 85 cm, how much is the focal length of eye lens?
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Two lens with different focal length are made as a telescope. If the magnification is 16 and the length of telescope is 85 cm, how much is the focal length of eye lens?
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An astronomical telescope has its two lenses spaced 82.9 cm apart. If the objective lens has a focal length of 78.5 cm , what is the magnification of this telescope? Assume a relaxed eye. Follow the sign conventions.
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