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There are certain materials developed in...

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

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
A
From Snell.s law, refractive index of medium w.r.t. to air is
`mu=(sini)/(sinr)`
`rArr" "sinr=(sini)/(mu)`
Given that `mu` is negative. Therefore, sin r is negative or r is negative.
The ray will follow the path shown in fig. (a).
The correct option is (a).
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Knowledge Check

  • Refractive index of a medium is given by

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    `sqrt(mu_(r)epsi_(r))`
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    relative refractive index
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    absolute refractive index
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    disperson
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    none of these

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