Question

'The refractive index of diamond is 2.42’.
What is meant by this statement ?​

Answer 1

Answer:

The refractive index of diamond is 2.42. This means that the speed of light in a diamond will reduce by a factor of 2.42 compared to its speed in air. In other words, the speed of light in a diamond is 1/2.42 times the speed of light in a vacuum.

Explanation:

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Answer 2

Answer:

The refractive index of diamond is 2.42 this means that the speed of light in diamond will reduce by a factor of 2.42 as compared to its speed in air. In other words the speed of light in diamond is 2.42 times less than the normal speed of light in vacuum.