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JEE Advanced2012PhysicsRay OpticsActual

Most materials have the refractive index, n>1 . So, when a light ray from air enters a naturally occurring material, then by Snell's law, ₁ ₂ = n₂ n₁ , it is understood that the refracted ray bends towards the normal. But it never emerges on the same side of the normal as the incident ray. According to electromagnetism, the refractive index of the medium is given by the relation, n =c / v= _ r _ r , where c is the sp

Options

  1. AThe speed of light in the meta-material is v=c|n|
  2. BThe speed of light in the meta-material is v= c |n|
  3. CThe speed of light in the meta-material is v=c .
  4. DThe wavelength of the light in the meta-material ( _ m ) is given by _ m = _ air |n| , where _ air is waveleng

Correct answer

B. The speed of light in the meta-material is v= c |n|

Step-by-step solution

Speed of light in a medium, V= C n n for meta-material =|n| Speed of light in the meta-material V= C |n| .

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