2. What is the shape of the wave front at a point far away from the source of light?
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For a point far away from the source of the light wavefront is planar in shape as rays are parallel to each other.
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the shape of the wave front at a point far away from the source of light
As we know that For a point far away from the source of the light wavefront is planar in shape as rays are parallel to each other.
The shape of the wave front in case of a light diverging from a point source is spherical and is shown in the given figure. The shape of the wavefront in case of a light emerging out of a convex lens when a point source is placed at its focus is a parallel grid.
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