Spherical wavefronts shown in figure, strike a plane mirror. Reflected wavefront will be as shown in
A parallel beam of light strikes a piece of transparent glass having cross section as shown in the figure below. Correct shape of the emergent wavefront will be (figures are schematic and not drawn to scale)-
Derive the laws of refraction from the concept (Huygen's principle) of the wavefront.
Write Huygen's principle and principle basically composited ?
Consider a point at the focal point of a convergent lens. Another convergent lens of short focal length is placed on the other side. What is the nature of the wavefronts emerging from the final image ?
What is the shape of the wavefront on earth for sunlight?
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