The magnifying power of an astronomical telescope for normal adjustment is
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the magnifying power of an astronomical telescope in normal adjustment is 100. the distance between objective and eyepiece is 10 cm. find the focal length of the objective and eyepiece.
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Length = focal length of eyepiece + focal length of objective lens
We know magnifying power in normal adjustment = focal length of objective lens divided by focal length of eye piece
Focal length of objective lens= 50 * 2= 100
Length= 100+2
=102
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