A telescope that produces an overall angular magnification of 38 uses an eyepiece lens with a focal length of?
Monday, May 17th, 2010 at
3:39 am
A telescope that produces an overall angular magnification of 38 uses an eyepiece lens with a focal length of 5 cm. What is the focal length of the objective lens?
_____cm
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Magnification = F(objective)/F(eyepiece), thus F(objective = Magnification*F(eyepiece) = 190 cm.