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diffraction    音标拼音: [dɪfr'ækʃən]
n. 衍射

衍射

diffraction
绕射

diffraction
n 1: when light passes sharp edges or goes through narrow slits
the rays are deflected and produce fringes of light and
dark bands

Diffraction \Dif*frac"tion\, n. [Cf. F. diffraction.] (Opt.)
The deflection and decomposition of light in passing by the
edges of opaque bodies or through narrow slits, causing the
appearance of parallel bands or fringes of prismatic colors,
as by the action of a grating of fine lines or bars.
[1913 Webster]

Remarked by Grimaldi (1665), and referred by him to a
property of light which he called diffraction.
--Whewell.
[1913 Webster]

{Diffraction grating}. (Optics) See under {Grating}.

{Diffraction spectrum}. (Optics) See under {Spectrum}.
[1913 Webster]

76 Moby Thesaurus words for "diffraction":
amplitude, antinode, attenuation, broadcast, broadcasting,
circumfusion, crest, de Broglie wave, deflection, deflexure,
diffusion, dilution, dispensation, dispersal, dispersion,
dissemination, dissipation, distortion, distribution, divergence,
electromagnetic radiation, electromagnetic wave, evaporation,
expansion, flection, flexure, fragmentation, frequency,
frequency band, frequency spectrum, guided wave, in phase,
interference, light, longitudinal wave, mechanical wave, node,
out of phase, peppering, period, periodic wave, propagation,
publication, radiation, radio wave, ray, refraction, reinforcement,
resonance, resonance frequency, scatter, scattering, scatterment,
seismic wave, shock wave, shotgun pattern, skewness, sound wave,
sowing, spattering, splay, spread, spreading, sprinkling, strewing,
surface wave, tidal wave, torsion, transverse wave, trough,
volatilization, wave, wave equation, wave motion, wave number,
wavelength


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  • Diffraction - Wikipedia
    Diffraction is the deviation of waves from straight-line propagation without any change in their energy due to an obstacle or through an aperture The diffracting object or aperture effectively becomes a secondary source of the propagating wave
  • Diffraction | Definition, Examples, Types, Facts | Britannica
    Diffraction, the spreading of waves around obstacles Diffraction takes place with sound; with electromagnetic radiation, such as light, X-rays, and gamma rays; and with very small moving particles such as atoms, neutrons, and electrons, which show wavelike properties
  • What Is Diffraction? The Physics of Spreading Waves
    Diffraction is the phenomenon where waves bend, spread, or interfere when they encounter an obstacle or pass through a narrow opening The effect is subtle yet profound
  • Diffraction: Definition, Physics, Equation, and Formula
    Diffraction is the bending or spreading of light waves around an obstacle The obstacle can be an aperture or slit whose size is approximately the same as the wavelength of light The amount of bending depends on the relative size of the opening compared to the wavelength of light
  • 26. 2: Diffraction - Physics LibreTexts
    As we explained in the previous paragraph, diffraction is defined as the bending of a wave around the edges of an opening or an obstacle The double-slit experiment, also called Young’s experiment, shows that matter and energy can display both wave and particle characteristics
  • 17. 1 Understanding Diffraction and Interference - OpenStax
    The bending of a wave around the edges of an opening or an obstacle is called diffraction Diffraction is a wave characteristic that occurs for all types of waves If diffraction is observed for a phenomenon, it is evidence that the phenomenon is produced by waves
  • Diffraction of light - GeeksforGeeks
    Diffraction describes a specialized case of light scattering in which an object with regularly repeating features (such as a diffraction grating) produces an orderly diffraction of light in a diffraction pattern
  • What is diffraction in physics? - California Learning Resource Network
    Diffraction refers to the deviation of waves from rectilinear (straight-line) propagation when encountering an obstacle or aperture It’s not simply reflection or refraction; it’s a fundamental alteration in the wavefront itself The core principle governing diffraction is rooted in Huygens’ principle
  • Diffraction Of Light - Unifyphysics
    In physics, diffraction refers to the bending and spreading of waves, especially light and sound waves, when they encounter an obstacle or a slit that is comparable in size to their wavelength It’s like the waves are hugging the corners of the obstacle or squeezing through the slit and fanning out as a result
  • Diffraction Explained | Wave, Interference Patterns
    Diffraction is a fundamental concept in the study of waves and optics that describes how waves bend around obstacles and spread out as they pass through narrow openings It is a phenomenon that occurs with all types of waves, including sound, light, and water waves





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