Question
An initially parallel cylindrical beam travels in a medium of refractive index , where and are positive constants and l is the intensity of the light beam. The intensity of the beam is decreasing with increasing radius.
The inital shape of the wave front of the beam is
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Question Text | An initially parallel cylindrical beam travels in a medium of refractive index , where and are positive constants and l is the intensity of the light beam. The intensity of the beam is decreasing with increasing radius. The inital shape of the wave front of the beam is |
Answer Type | Video solution: 1 |
Upvotes | 150 |