File talk:Refraction - Huygens-Fresnel principle.svg

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The picture is wrong. Because of the velocity of light is lower in water, than in vacuum (air) (c(vac)>c(water)), and because of frequency is constant f(vac) = f(water) the wavelenth l in water is smaler, than in vacuum. l = c/f. The wavefronts in water have to start in those points, where the diffraction of wavefronts occurs. Krieger — Preceding unsigned comment added by 87.184.244.1 (talk • contribs) 14:15, 29. Apr. 2008 (UTC)

Although there is no water or air in this illustration, I think I got your point. I will check that. Thanks for the hint. --norro 16:49, 29 April 2008 (UTC)[reply]
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