(adsbygoogle = window.adsbygoogle || []).push({}); 1. Find the length of the curvature of a concave mirror of 20cm that comply with paraxial approximation for all incident rays

2.conventional geometry formula , sinθ≈θ or tanθ≈θ for paraxial rays

3. I had try drafting out the diagram , labeling all the unknown angle with symbol and trying to work out on them but I just can't find the angle CAB of the triangle because I don't know height of the triangle.

This is a sketch:

Did I miss anything?

Any suggestion on how to solve this problem?

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# Homework Help: Paraxial approximation on concave mirror

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