Spherical wavefronts shown in figure, strike a plane mirror. Reflected wavefront will be as shown in
Light wave travel in vacuum along the $x$-axis, which of the-following may represent the wave front
Derive the laws of refraction from the concept (Huygen's principle) of the wavefront.
Carefully analyses the diagram and choose the correct option :
Write Huygen's principle and principle basically composited ?
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