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Geometrical Optics question

2010 · Shift 0 · Q60
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Geometrical Optics question

2010 · Shift 0 · Q60

JEE MainPhysicsGeometrical OpticsMCQ+4 / −1
An initially parallel cylindrical beam travels in a medium of refractive index μ(I)=μ0+μ2 I,\mu \left( I \right) = {\mu _0} + {\mu _2}\,I,μ(I)=μ0​+μ2​I, where μ0{\mu _0}μ0​ and μ2{\mu _2}μ2​ are positive constants and III 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
  1. A
    diverge
  2. B
    converge
  3. C
    diverge near the axis and converge near the periphery
  4. D
    travel as a cylindrical beam
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