Definitions for Index Of Refraction
in·dex of re·frac·tion

Princeton's WordNetRate this definition:0.0 / 0 votes

1. refractive index, index of refractionnoun

   the ratio of the velocity of light in a vacuum to that in a medium

WikipediaRate this definition:0.0 / 0 votes

1. index of refraction

   In optics, the refractive index (or refraction index) of an optical medium is a dimensionless number that gives the indication of the light bending ability of that medium. The refractive index determines how much the path of light is bent, or refracted, when entering a material. This is described by Snell's law of refraction, n1 sin θ1 = n2 sin θ2, where θ1 and θ2 are the angle of incidence and angle of refraction, respectively, of a ray crossing the interface between two media with refractive indices n1 and n2. The refractive indices also determine the amount of light that is reflected when reaching the interface, as well as the critical angle for total internal reflection, their intensity (Fresnel's equations) and Brewster's angle.The refractive index can be seen as the factor by which the speed and the wavelength of the radiation are reduced with respect to their vacuum values: the speed of light in a medium is v = c/n, and similarly the wavelength in that medium is λ = λ0/n, where λ0 is the wavelength of that light in vacuum. This implies that vacuum has a refractive index of 1, and assumes that the frequency (f = v/λ) of the wave is not affected by the refractive index. The refractive index may vary with wavelength. This causes white light to split into constituent colors when refracted. This is called dispersion. This effect can be observed in prisms and rainbows, and as chromatic aberration in lenses. Light propagation in absorbing materials can be described using a complex-valued refractive index. The imaginary part then handles the attenuation, while the real part accounts for refraction. For most materials the refractive index changes with wavelength by several percent across the visible spectrum. Nevertheless, refractive indices for materials are commonly reported using a single value for n, typically measured at 633 nm. The concept of refractive index applies across the full electromagnetic spectrum, from X-rays to radio waves. It can also be applied to wave phenomena such as sound. In this case, the speed of sound is used instead of that of light, and a reference medium other than vacuum must be chosen.For lenses (such as eye glasses), a lens made from a high refractive index material will be thinner, and hence lighter, than a conventional lens with a lower refractive index. Such lenses are generally more expensive to manufacture than conventional ones.

ChatGPTRate this definition:0.0 / 0 votes

1. index of refraction

   The index of refraction, also known as refractive index, is a measure of how much the speed of light (or other waves such as sound waves) is reduced inside a material. It is defined as the ratio between the speed of light in vacuum and its speed in a specific medium. An index of refraction of 1 implies that light travels at full speed, while higher indices indicate slower speeds. It is an important property that affects the bending of light (refraction) as it moves from one medium to another.

Matched Categories

1. • Ratio

How to pronounce Index Of Refraction?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say Index Of Refraction in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of Index Of Refraction in Chaldean Numerology is: 1

2. Pythagorean Numerology

   The numerical value of Index Of Refraction in Pythagorean Numerology is: 6

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=Index Of Refraction
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Index_of_Refraction
3. ^ ChatGPT
   https://chat.openai.com