Question

Define Huygen's Principle.

Answer 1

the principle that all points on a wave front of light are sources of secondary waves and thatsurfaces tangential to thesewaves define the position of thewave front at any point in time.

Answer 2

every point of an advancing wave front is a new center of disturbance from which emanate independent wavelets whose envelope constitutes a new wave front at each successive stage of the process.




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