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An initially parallel cylindrical beam travels in a medium of refractive index n(I) = n1 + n2(I), where n1 and n2 are positive constants and I is the intensity of the light beam. The intensity of the beam is decreasing with increasing radius. [AlEEE-2010]The speed of light in the medium is (1) minimum on the axis of the beam (2) the same everywhere in the beam (3) directly proportional to the intensity I(4) maximum on the axis of the beam

An initially parallel cylindrical beam travels in a medium of refractive index n(I) = n1 + n2(I), where n1 and n2 are positive constants and I is the intensity of the light beam. The intensity of the beam is decreasing with increasing radius. [AlEEE-2010]The speed of light in the medium is (1) minimum on the axis of the beam (2) the same everywhere in the beam (3) directly proportional to the intensity I(4) maximum on the axis of the beam

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1 Answers

Arun
25763 Points
3 years ago
Option 1 is correct. Because velocity of the light reduces radially.Hope it clear your doubt.RegardsArun

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