Скачать или смотреть Example: Optical Path Length (with phase shifts)

In this video, we calculate the optical path length that light takes from one point to another, incorporating phase shifts due to reflection. I also briefly discuss when phase shifts happen and the equations that underlie them (the Fresnel Equations).

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This is part of my series on introductory electromagnetism, where we explore one of the fundamental forces of nature - how your phone charges and communicates with the rest of the world, why you should be afraid of the sun, and the fundamentals of electric and magnetic forces and fields, voltages,