What is the refractive index of a material in which the red-light wavelength is 450 nm?

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Jaydan Cantrell · Accepted Answer

The index of refraction of a material in which the wavelength of red light is 450 nm is   1.38  ≤  n  ≤  1.67What is index of refraction?The refractive index is a value that is determined by the ratio of the speed of light in a vacuum to the speed of light in another medium. The refractive index is usually represented by the letter n or n&#039;.The refractive index  n  is the factor by which wave slows down relative to the speed of light in vacuum  c0 . Almost always, frequency of a wave is constant and so it is the speed and wavelength that change as light passes from one medium into another.So the wavelength   λ inside of the medium is related to free space wavelength        λ    0    through the refractive index  n .  λ  =            λ      0        n  Red light has free space wavelength        λ    0    of anywhere from 620 nm to 750 nm. All of those of wavelengths look red to our eyes. From above equation refractive index is   n1=frac{lambda_0}{lambda}=frac{620text{ nm}}{450text{ nm}}=1.38n2=frac{lambda_0}{lambda}=frac{750text{ nm}}{450text{ nm}}=1.67Show External URL Show Embeded Code Hide MathML Coden1=λ0λ=620 nm450 nm=1.38n2=λ0λ=750 nm450 nm=1.67  n  1  =            λ      0        λ    =            620       nm              450       nm        =  1.38    n  2  =            λ      0        λ    =            750       nm              450       nm        =  1.67Based on information you gave, the refractive index could be anything in the range   1.38  ≤  n  ≤  1.67.

What is the refractive index of a material in which the red-light wavelength is 450 nm?

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