Analysing spherical aberration in concave mirrors |
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| Authors: | Ranjit Konkar |
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| Institution: | 1. National Institute of Design, Ahmedabad, 380 007, India
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| Abstract: | What is the real behaviour of the spherically concave mirror which, we were taught in school, focuses a parallel beam to a point? What is the accuracy and range of its focussing behaviour and what happens outside that range? How do we relate this behaviour to the measurable dimensions of the mirror? This article presents answers to these questions using simple geometry and algebra. |
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