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the objective lens of the refracting teles...
Physics, 16.07.2019 21:20 lpssprinklezlps
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the objective lens of the refracting telescope at the lick observatory in california has a focal length of 57 ft.
what is the refractive power of this lens?
what focal length (mm) eyepiece would give a magnification of 1000x for this telescope?
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