Lesson 7 of 8Module 1 · 0% of course
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Physics · Classical

Light & Optics

Light as an electromagnetic wave and a stream of photons: the spectrum, reflection and refraction (Snell's law), total internal reflection and fiber optics, lenses and the thin-lens equation, interference and diffraction.

30 min · 6 steps · videoJump to quiz ↓
Why does light exist? - with Gideon Koekoek The Royal Institution · 59 min
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Step 1 of 6 · Overview30 min read ·
Key idea
Prereqs: Waves & sound; Electricity & magnetism. Next: Atoms & nuclei; General relativity. Sources: Crash Course Physics #38–41; OpenStax *College Physics* ch. 25–27; Feynman, *QED*.
Next: 1. What light is

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