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AIEEE 2010 Solved Paper

Section: Physics

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Question : 48 of 89

Marks: +1, -0

An initially parallel cylindrical beam travels in a medium of refractive index

\mu(I)=\mu_0+\mu_2 I

\mu_0

\mu_2

are positive constants and

I

is the intensity of the light beam. The intensity of the beam is decreasing with increasing radius.

As the beam enters the medium, it will

diverge
converge
diverge near the axis and converge near the periphery
travel as a cylindrical beam

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