Q6 of 284 Page 227

The refractive index of diamond is 2.42. What is the meaning of this statement in relation to the speed of light?

refractive index of diamond = 2.42

Since, the relation between the angle of incidence and the angle of refraction for a medium is



This means that the ratio of the speed of light in air to the speed of light in diamond is equal to 2.42.


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Refractive indices of carbon disulphide and ethyl alcohol are 1.63 and 1.36 respectively. Which is optically denser?

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If the refractive index for light going from air to diamond be 2.42, what will be the refractive index for light going from diamond to air?

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How is the refractive index of a material related to the speed of light in it?