Question

the refractive indices of four media A, B, C and D are given in the following table medium A, B, C, and D refractive index 1.33, 1.50, 1.52 & 2.40. If light, travel from one medium to another, in which case the change in speed will be

Answer 1

Answer:

REfractive index is inversely propotional to the speed of light in the medium.

(i) speed will be minimum in medium D because it has high refractive index

(ii) speed will be maximum in medium A because it has low refractive index

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Explanation:

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Answer 2

$\mathfrak \red{question}$

The refractive indices of four media A, B, C and D are given in the following table

Medium A B C D

Refractive index 1.33 1.50 1.52 2.40

If light, travel from one medium to another, in which case the change in speed will be i) Maximum ii) Minimum

$\bold\blue{solution}$

The refractive index of a medium is related to the speed of light as follows

Refractive index = Speed of light in vacuum / speed of light in a medium.

Since the speed of light in vacuum is a constant, the refractive index becomes inversely proportional to the speed of light in a medium.

(1)The speed of light is maximum in a medium that has the lowest refractive index,ie.,medium A

(2) The speed of light is minimum in a medium that has the highest refractive index,ie., medium D.

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