dispersion definition
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Dispersion (optics) In optics, dispersion is the phenomenon in which the phase velocity of a wave depends on its frequency. Media having this common property may be termed dispersive media. Sometimes the term chromatic dispersion is used for specificity.
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Dispersion Dispersion. Chromatic dispersion is the change of index of refraction with wavelength. Generally the index decreases as wavelength increases, blue light traveling more slowly in the material than red light. Dispersion is the phenomenon which gives you the separation of colors in a prism.
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Dispersion (water waves) In fluid dynamics, dispersion of water waves generally refers to frequency dispersion, which means that waves of different wavelengths travel at different phase speeds. Water waves, in this context, are waves propagating on the water surface, and forced by gravity and surface tension.As a result, water with a free surface is generally considered to be a dispersive medium. Surface gravity waves, moving under the forcing by gravity, propagate faster for increasing wavelength.or a fixed water depth, long waves (with large wavelength) propagate faster than shorter waves. In the left figure, it can be seen that shallow water waves, with wavelengths λ much larger than the water depth h, travel with the phase velocity. with g the acceleration by gravity and cp the phase speed.
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dispersion 3. : the scattering of the values of a frequency distribution from an average. 4. : the separation of light into colors by refraction or diffraction with formation of a spectrum; also: the separation of radiation into components in accordance with some varying characteristic (as energy).5.. : the scattering of the values of a frequency distribution from an average. 4. : the separation of light into colors by refraction or diffraction with formation of a spectrum; also: the separation of radiation into components in accordance with some varying characteristic (as energy).
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- Definition of DIFFRACTION. : a modification which light undergoes especially in passing by the edges of opaque bodies or through narrow openings and in which the rays appear to be deflected; also: a similar modification of other waves (as sound waves) or of moving particles (as electrons).See diffraction defined for kids. ADVERTISEMENT. a modification which light undergoes especially in passing by the edges of opaque bodies or through narrow openings and in which the rays appear to be deflected; also: a similar modification of other waves (as sound waves) or of moving particles (as electrons). See diffraction defined for kids.
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diffraction noun. Diffraction is defined as a process by which light waves break up into dark and light bands or into the colors of the spectrum. Light passing through a narrow opening in the blinds, causing bright and dark shadows and patterns to fall across the floor is an example of defraction.iffraction-Computer Definition. The process by which the propagation of radiant waveforms or light waves is modified as those waves encounter an obstacle or discontinuity, or exit one medium and enter another. Some of the waves deviate from their paths, i.e., bend, by diffraction.
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- dispersing. 1  transitive verb. 2  1a : to cause to break up (see break up 1a) police dispersed the crowdb : to cause to become spread widely disperse the troopsc : to cause to evaporate or vanish sunlight dispersing the mist.
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Dispersion of Light by Prisms The same can be said for red light on the upper edge of the beam. Dispersion of light provides evidence for the existence of a spectrum of wavelengths present in visible light. It is also the basis for understanding the formation of rainbows. Rainbow formation is the next topic of discussion in Lesson 4.
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diffusion 1 Also called migration. an intermingling of molecules, ions, etc., resulting from random thermal agitation, as in the dispersion of a vapor in air.  a reflection or refraction of light or other electromagnetic radiation from an irregular surface or an erratic dispersion through a surface; scattering.
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Talk:List of South African slang words My opinion is that many of the words listed here are not slang, but rather South Africanisms. Good example: ja is a totally acceptable Afrikaans word, and is not slang (substandard language). doos is not acceptable in standard language and hence is slang.I suggest that the article's title be amended to something like List of South African terms.Slang isn't really appropriate here.y opinion is that many of the words listed here are not slang, but rather South Africanisms. Good example: ja is a totally acceptable Afrikaans word, and is not slang (substandard language). doos is not acceptable in standard language and hence is slang.
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diffusion act of diffusing; state of being diffused. 2. prolixity of speech or writing; discursiveness. 3. Physics. Also called migration. an intermingling of molecules, ions, etc., resulting from random thermal agitation, as in the dispersion of a vapor in air.
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Dispersion (optics) The most commonly seen consequence of dispersion in optics is the separation of white light into a color spectrum by a prism. From Snell's law it can be seen that the angle of refraction of light in a prism depends on the refractive index of the prism material.he most familiar example of dispersion is probably a rainbow, in which dispersion causes the spatial separation of a white light into components of different wavelengths (different colors).
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disperse scatter, disperse, dissipate, dispel mean to cause to separate or break up. scatter implies a force that drives parts or units irregularly in many directions. the bowling ball scattered the pins; disperse implies a wider separation and a complete breaking up of a mass or group. police dispersed the crowd
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Statistical dispersion Robust measures of scale are those unaffected by a small number of outliers, and include the IQR and MAD. All the above measures of statistical dispersion have the useful property that they are location-invariant, as well as linear in scale.
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Distillation Distillation is a process of separating the component substances from a liquid mixture by selective evaporation and condensation. Distillation may result in essentially complete separation (nearly pure components), or it may be a partial separation that increases the concentration of selected components of the mixture. In either case the process exploits differences in the volatility of mixture's components.
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Colloidal Dispersions Colloidal dispersions are heterogeneous in nature and gas dispersed in another gaseous medium does not form colloidal system. When the dispersion medium is gas, the solution is called Aerosol and when the dispersion medium is liquid, the colloidal dispersion is known as Sol.
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- Clumped dispersions also happen in habitats that are patchy, with only some patches suitable to live in. As you can see from these examples, dispersion of individuals in a population provides more information about how they interact with each other—and with their environment—than a simple density measurement.
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Distillation Definition - What does Distillation mean? Distillation is a separation technique, where substances are removed from a fluid mixture by evaporation and condensation. The distillation method can be either complete or partial. The process usually separates component substances from the fluid mixture.
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Definitions &Translations Wiktionary(0.00 / 0 votes)Rate this definition: There will be a scattering of showers, with heavy rain in places. The process whereby a beam of waves or particles is dispersed by collisions or similar interactions.
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- Polarization Mode Dispersion (PMD) is a serious problem that can limit distances. and data rates in an optical fiber system. PMD is a time varying quantity that. degrades system bandwidth and is costly to mitigate. It affects network reliability. and is becoming more evident as network speeds increase.
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Spatial Distribution Models Second, dispersion is explained as a concept used to describe the type of distribution of individuals within a patch. Types of dispersion patterns include random, uniform, and clumped, and there are two main methods used to identify each of the dispersion patterns. The article concludes with a description of ‘spatially explicit models’, which are used by ecologists and resource managers to relate populations to the habitats in which they live.
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Singular Nouns Starting with D 1. (n.) The act of dispersing; separation; dispersion; wasting away; as, dissipation of wealth. 2. (n.) A dissolute course of life, in which health, money, etc., are squandered in pursuit of pleasure; profuseness in vicious indulgence, as late hours, riotous living, etc.; dissoluteness.
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- “We can teach the way we were taught, or. we can teach the way people learn.”. Adult Learning Theories and Practices1. This brief article provides a basic framework for the instructor to consider as they. plan and deliver training to adult learners. The theories and practices are based. on long-standing research and data with regard to effective ways to train adults in. any learning environment.
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Clumped Dispersion Pattern: Definition & Explanation There are three types of dispersion patterns. Clumped dispersion is when individuals in a population are clustered together, creating some patches with many individuals and some patches with no individuals. In uniform dispersion, individuals are spaced evenly throughout an area.
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Precession In astronomy, precession refers to any of several slow changes in an astronomical body's rotational or orbital parameters. An important example is the steady change in the orientation of the axis of rotation of the Earth, known as the precession of the equinoxes.
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dissension noun. Dissension is defined as a difference of opinion. An example of a dissension is the report of the Supreme Court justices who were against a majority decision.