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6 votes
Accepted

Huygens' principle and the laws of reflection/refraction

The construction you link to shows the same wavefront at multiple points in time, not a snapshot of a light wave at one point in time. The yellow dots constituting the point sources at the interface ...
hijit's user avatar
  • 99
3 votes

Huygens' principle and the laws of reflection/refraction

The points shown as yellow blobs on your diagram are in phase, even though they are not on the same wavefront. The hemispheres drawn in the lower medium do seem like Huygens secondary wavelets. But ...
Philip Wood's user avatar

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