What is Fermat's Theorem on Light?

In summary, Fermat's Theorem on Light, also known as the principle of least time, states that light travels between two points in the shortest amount of time possible. This theorem is based on the concept of the speed of light being constant, and it has been used to explain various phenomena in optics, such as refraction and reflection. It was proposed by French mathematician and physicist Pierre de Fermat in the 17th century and has since been fundamental in understanding the behavior of light.
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Michael-H
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Hi, I'm Michael, a high schooler very passionate about physics. My favorite physics theorem is Fermat's Theorem on light. I'm also very into computer science and math. I run a physics blog. I look forward to discussions on physics forum!
 
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Hello and :welcome: !

I hope you will have fun and stay curious!

P.S.: You may link to your blog on your profile page. It is too spammy for us at other locations.
 

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