The Huygens–Fresnel principle is a method of analysis applied to problems of wave propagation both in the far-field limit and in near-field diffraction.
Huygen's principle is related to NATURE OF LIGHT..... he says that LIGHT IS A WAVE... which travels in HYPOTHETICAL MEDIUM called ETHER MEDIUM... which is present all around the universe.... he gives a perfect idea about WAVEFRONTS....
The Huygens–Fresnel principle is a method of analysis applied to problems of wave propagation both in the far-field limit and in near-field diffraction.