Question

The refractive indices of four media are given as :
Medium A 1.4
Medium B 2.4
Medium C 1.12
Medium D 2.1
The light will travel fastest in :
1) medium a
2) medium b
3) medium c
4) medium d

Answer 1

Answer:

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Answer 2

Answer:

Medium C

Explanation:

we know that,

u = C/V

where C indicate speed of light in air and V indicates Speed of light in given medium.

from these, we can say that, if refractive index is more then speed of light will be slow and vice versa.

Therefore,For Medium C (1.12) light can travel fast when compares to other Medium because, of it has less refractive index.