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  • There are certain material developed in laboratories which have a negative refractive index (Fig. 9.3). A ray incident from air (medium 1) into such a medium (medium 2) shall follow a path given by

There are certain materials developed in laboratories that have a negative refractive index (Fig. 9.3). A ray incident from the air (medium 1) into such a medium (medium 2) shall follow a path given by

A.

 

 

Answers (1)

The answer is the option (a).

Explanation:-

 

  • Option A: The ray is refracted in a direction consistent with a negative refractive index.
  • Option B: This might not match the behavior expected.
  • Option C: A different path that could represent the refraction at the interface.
  • Option D: The light behaves in a very specific way based on the negative refractive index.

In materials with a negative refractive index, light behaves differently than in typical materials with a positive refractive index. The direction of refraction is reversed compared to what you would expect in a normal medium. This means that when a ray of light enters the medium with a negative refractive index, the angle of refraction will be on the opposite side of the normal relative to the angle of incidence.

When a material has a negative refractive index, it follows the Snell's law in an opposite manner. And when an incident ray from one medium (air) falls on them, it bends just the way shown in option (a) which is on the same side as the normal.

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