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KVPY2017PhysicsWave Optics

A light beam travelling along the x axis with planar wavefront is incident on a medium of thickness t . In the region, where light is falling the refractive index can be taken to be varying such that dn dy >0 . The light beam on the other side of the medium will emerge

Options

  1. Aparallel to the x -axis
  2. Bbending downward
  3. Cbending upward
  4. Dsplit into two or more beams

Correct answer

C. bending upward

Step-by-step solution

In y direction refractive index is increasing therefore speed of light is decreasing

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