Questions
Nature of wave front depends on
detailed solution
Correct option is C
For a point source of light, wave fronts at finite distance are concentric spherical surfaces.For a long line source of light, wave fronts at finite distances are co-axial cylindrical surfaces.For parallel rays of light wave fronts are plane surfaces.At very large distance rays of light, emerging from any sources, become nearly parallel.So option - (3) is right.Talk to our academic expert!
Similar Questions
Refractive index of a long cylinder made of transparent material is increasing as we are moving away from its axis. A beam of parallel rays, parallel to the axis of the cylinder is incident on one end of the rod as shown in figure. Then which of the following diagrams correctly shows the shape of wavefront inside the rod?
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