Question

hugen principls prove law of reflectio on the basis of hugen pricipla​

Answer 1

Answer:

The Huygens-Fresnel principle states that every point on a wavefront is a source of wavelets. These wavelets spread out in the forward direction, at the same speed as the source wave. The new wavefront is a line tangent to all of the wavelets.

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Answer 2

$\huge\mathcal\red{Answer:}$

As these rays are incident from the surface, so we call it incident ray. If we draw a perpendicular from point 'A' to this ray of light, Point A, and point B will have a line joining them and this is called as wavefront and this wavefront is incident on the surface.