The refractive index of diamond is 2.42. What is the meaning of this statement?

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Solution

Refractive index of a medium n_m is related to the speed of light in that medium v by the relation:

Where, c is the speed of light in vacuum/air

The refractive index of diamond is 2.42. This suggests that the speed of light in diamond will reduce by a factor 2.42 compared to its speed in air.

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Question 5
The refractive index of diamond is 2.42. What is the meaning of this statement?

(iii) Name a liquid whose mass density is less than that of water but it is optically denser than water.

2.42

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