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    Galileo's Original Telescope

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    The diagram above illustrates Galileo's original telescope. He used a convex objective lens with a focal length of 1.7m and a concave eyepiece as illustrated above. When this telescope is focused on an indefinitely distant object, its angular magnification is +3.

    a. What is the focal length of the eyepiece?
    b. What is the distance d between the two lenses?

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    https://brainmass.com/physics/lenses/galileos-original-telescope-100945

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    Galileo's original telescope is investigated in the solution.

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