A refracting astronomical telescope has a magnifying power of 150 when adjusted for minimum eyestrain. Its eyepiece
Question:
A refracting astronomical telescope has a magnifying power of 150 when adjusted for minimum eyestrain. Its eyepiece has a focal length of +1.20 cm.
(a) Determine the focal length of the objective lens.
(b) How far apart must the two lenses be so as to project a real image of a distant object on a screen 12.0 cm from the eyepiece?
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