Which one of the following statements concerning the index ofrefraction for a gi

Question

Which one of the following statements concerning the index ofrefraction for a given material is true?

a. It may be less than 1.
b. For a given frequency, it is inverselyproportional to the wavelength of light in thematerial.
c. It does not depend on the frequency ofthe incident light.
d. For a given frequency, it is inverselyproportional to the wavelength of light in vacuum.
e. It may be measured in nanometers. Which one of the following statements concerning the index ofrefraction for a given material is true? It may be less than 1. For a given frequency, it is inverselyproportional to the wavelength of light in thematerial. It does not depend on the frequency ofthe incident light. For a given frequency, it is inverselyproportional to the wavelength of light in vacuum. It may be measured in nanometers.

Explanation / Answer

The refractive index of the material is inverselyproportional to the wave length of light in the material = velocity of light in vaccum/ velocity of lightin material      = c/v so it is inversely proportional to the velocity of light inthe material we know that the velocity v = f so it is inversely proportional to wane length of light in thematerial

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