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Refractive indices, n, have no units because they are ratios. They are the ratio of the speed light in a vacuum C, (~3x108m/s) to speed of light in the medium vm. Therefore:
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoNo unit for the refractive index of material, as it is the ratio of the velocity of light in vacuum to that in the medium.
Also it is the ratio of sine values of angles of incidence to that of angle of refraction.
Wiki User
∙ 11y agoIt is dimensionless. It is the ratio of the speed of light in a vacuum, to the speed of light in the substance under consideration. For example, if the speed of light in a substance is 200,000 km/sec, then this ratio would be (300,000 km/sec) / (200,000 km/sec) = 1.5. The units disappear, and you get the same result if you first convert the speeds to kilometers per hour, miles per hour, angstroms per year, knots, etc.
Wiki User
∙ 14y agoRefractive index is a dimensionless constant - a pure number.
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∙ 9y agoAdd your answer:
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What is the index of refraction for liquid methane?
n=1
What is the index of refraction for liquid ammonia?
The refractive index values given were wavelength dependent, and ranged from 1.00038 at 0.46 microns down to 1.000037 at 0.68 micron. The offered centroid value was 1.000383
Why the refractive index of ice is lower than that of water?
The refractive index of a certain material increases with its density. The refractive index of ice is less because it has a lower density than liquid water.
What is specific gravity and its unit?
Specific gravity is the density of a substance, divided by the density of water. Since two units of the same type are divided, specific gravity is dimensionless (i.e., no unit).
Which of the following values represents an index of refraction of an actual material A 0 B1 4 C 1 2 D 5 4?
pennfoster its 5/4 just took the test good luck!
What is the index of refraction used to measure?
The index of refraction is a unitless ratio. It has no units, it is a pure number.
What is the bending of light rays as it passes from one material into another?
Index Of Refraction
How do you think increasing a medium's index of refraction might affect the angle of refraction?
Q: How do you think increasing a medium's index of refraction might affect the angle of refraction?
When light passes from a medium with a high index of refraction into a medium with a lower index of refraction which direction does the light bend?
A medium with a higher index of refraction, like diamond, is more dense than the medium with a lower index of refraction, like air. If the ray of light is moving from the less dense medium (lower index of refraction), to a more dense (higher index of refraction) the ray of light bends TOWARDS the normal.
How is the refractive index of glass is to water is related with that of air is to water?
Each substance has an index of refraction. The index of refraction of water is about 1.3330 . The index of refraction of air at standard conditions is about 1.0003 . There is no such thing as the index of refraction of "water to air".
When the mineral uvarovite has an index of refraction of 1.86. calculate the speed of light in this sample of uvarovite?
Use the definition of "index of refraction". In this case, you simply need to divide the speed of light in a vacuum by the index of refraction.
What is the refraction index of oil?
200
What is a property of a material that indicates how much it reduces the speed of light?
well kids, the answer is INDEX OF REFRACTION. (: science question on my homework
How is the index of refraction of a medium related to the speed light of in the medium?
c divided by the index of refraction of the medium = the speed of light in the medium.
does light travels three-fourths as fast through water as it does a vacuum. what is water's index in refraction?
Water's index of refraction is 1.333
When the mineral uvarovite has an index of refraction of 1.86. calculate the speed of light in this sample of uvarovite.?
Use the definition of "index of refraction". In this case, you simply need to divide the speed of light in a vacuum by the index of refraction.
What is the index of refraction for air?
Approximately 1
