Answer to Question #162608 in Optics for Keleko

Question #162608

A telescope is made of an object glass of focal length 20cm and an eyepiece of 5cm, both converging lenses. Find the magnification when the eye is focused to receive parallel rays.

Expert's answer

Magnification can be given as

"Magnification=\\frac{F_0}{F_e}=\\frac{20}{5}=4"

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