What is the relation between refractive index and density?
What is the relation between refractive index and density?
Ritz , 9 Years ago
Grade 12
General Physics> What is the relation between refractive i...
2 AnswersSachin Tiwari
(n-1)/d=constant.
Where,n=refractive index.
d=density. . … …..............
But it is true only for a certain type of materials.. Abd in geberal it can’t true..
.eg:-oil less dense than water, yet more optically refractive.
Sachin Tiwari
Refractive index is roughly proportional to the square root of the products of medium electrical and magnetic polarizability (e.g., permittivity and permeability). Refractive index increasing with density, mass/volume, is a red herring poorly coupled to increased polarizability of heavy elements.
Sulfur (rhombohedral):
d = 2.07 g/cm^3
nD = 1.957
Bromine:
d = 3.119 g/cm^3
nD = 1.661
Calcium fluoride:
d = 3.180 g/cm^3
nD = 1.434
Benzene:
d = 0.874
nD = 1.501
Hexadeuterobenzene:
d = 0.95 g/cm^3
nD = 1.497
Hexafluorobenzene:
d = 1.612 g/cm^3
nD = 1.332
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