A noncalculus proof that Fermat's principle of least time implies the law of refraction

HA Helfgott, M Helfgott

Research output: Contribution to journalArticle (Academic Journal)

Abstract

We provide an algebraic proof of the fact that Fermat's principle of least time implies Snell's law. This proof is closer to Fermat's original approach than the usual calculus-based developments of the subject. (C) 2002 American Association of Physics Teachers.
Translated title of the contributionA noncalculus proof that Fermat's principle of least time implies the law of refraction
Original languageEnglish
Pages (from-to)1224 - 1225
JournalAmerican Journal of Physics
Volume70 (12)
Publication statusPublished - Dec 2002

Bibliographical note

Publisher: Amer Assoc Physics Teachers Amer Inst Physics
Other identifier: IDS number 619WW

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