the telescope is used to provide angular magnification of distant objects. calculate thr magnifying power and tube length of a telescope having an objective lens of focal length 100cm and an eyepiece lens of focal length 1 cm
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magnificenion of telescope is ratio of focal length of objective to focal length of eyepiece.
therefore magnification =100
and tubelength =focal length of objective+focal length of eyepiece
=101cm
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