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Photometry and Geometrical Optics

Problem 5.60

A telescope system consists of two glass balls with radii R1=5.0 cmR_{1}=5.0 \mathrm{~cm} and R2=1.0 cm.R_{2}=1.0 \mathrm{~cm} . What are the distance between the centres of the balls and the magnification of the system if the bigger ball serves as an objective?

Reveal Answer
d=1/2n(R1+R2)/(n−1)=9.0 cm,Γ=R1/R2=5.0d=1 / 2 n\left(R_{1}+R_{2}\right) /(n-1)=9.0 \mathrm{~cm}, \Gamma=R_{1} / R_{2}=5.0
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