What is the significance of Huygens' concepti | vedclass

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(B) Huygens' principle states that every point on a primary wavefront acts as a source of secondary spherical wavelets,which spread out in all directi

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Is a geometrical method to find a wavefront

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(B) Huygens' principle states that every point on a primary wavefront acts as a source of secondary spherical wavelets,which spread out in all directions with the speed of light in the medium. The new wavefront at a later time is the forward envelope of these secondary wavelets. Therefore,it is a geometrical method to find the shape and position of a wavefront at any subsequent time. Thus,option $B$ is correct.

What is the significance of Huygens' conception of secondary waves?

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