Define a wavefront and explain Huygens
construction of a plane wavefront.
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Hyyy
Explanation:
A plane wavefront is formed when point of observation is very far away from the primary source. ... Let PQR represent a plane wavefront at any instant. According to Huygens' principle,all the points on this wavefront will act as secondary sources of light sending out secondary wavelets in the forward direction.
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Wavefront is the locus of all points vibrating at the same phase equidistant from the source.
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