Huygen's theory of light & wavefronts | Wave optics | Physics | Khan Academy
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Huygen's theory of light & wavefronts | Wave optics | Physics | Khan Academy
Huygen's proposed that light is a longitudinal wave in the aether medium - a medium that pervades the entire universe. The set of particles oscillating in phase with each other is called a wavefront. Point sources give out spherical wavefronts, while sources at infinity give plane wavefronts. More free lessons & practice https://www.khanacademy ...
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