Question
Explain the construction and propagation of a spherical wavefront using Huygens's principle.
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Answer
Huygens’ construction of a spherical wavefront: Consider a monochromatic light source S in a homogeneous isotropic medium. Light waves travel at the same velocity v in all directions. After time t, the wave will have reached all of the points vt away from S. This is the XY spherical wavefront. Let A, B, C, and so on represent points on this wavefront.
Huygens’ construction of a spherical wavefront
Huygens’ construction of a spherical wavefront
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