I don't understand how to do the following problem. I don't even know where to start.(adsbygoogle = window.adsbygoogle || []).push({});

Problem: Show that, in the paraxial domain, the magnification produced by a single spherical interface between two continious media given by Mt=-n1s1/n2s0. Use the small-angle approximation for Snell's Law and approximate the angles by their tangents.

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# Another optics question

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