wave number
1
7.8
- noun
- /weɪv ˈnʌmbər/
- Specialized
:
número de onda
- Higher wave numbers correspond to shorter wavelengths, which means more cycles occur in a given distance.
Examples
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In physics, the wave number is often measured in units such as inverse meters to describe wave properties.
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The wave number of a sound wave indicates how many wavelengths fit into a unit distance.
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Figure 7: Comparison of the numerical solutions at the field point with respect to wave number.
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Figure 11: Comparison of the numerical solutions at the field point with respect to wave number.
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In addition, another two tests with different wave numbers (20) are conducted.
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Figure 7 shows a pressure variation of a fixed field point (0.4, 0.6) with respect to the wave number.
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In order to get reliable solutions for high wave numbers, a refined mesh or a higher order of the polynomial approximation can be applied.
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By introducing the wave number and substituting (2.2) into (2.1), the following Helmholtz equation can be obtained:
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Specifically, the position of the 1580-cm⁻¹ G peak shifts to lower wave number with increasing sp³ bond fraction 77, 78.
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The Raman spectra of the PyC films deposited at 650-800 °C in the 400-3000 cm⁻¹ wave number range are shown in Online Resource 1.
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Synonyms
The number of waves in one unit of distance
Surface Forms
Morphology
The form 'wave number' clearly signals a numerical quantity related to waves (wave + number), so a B1 learner would likely infer it is some number associated with waves. However, the precise technical sense — 'the number of wavelengths per unit distance / the reciprocal of wavelength' — is specialized and not directly predictable from the constituents alone, requiring domain knowledge.
Etymology
The noun wave number comes from the simple idea of counting waves. Imagine measuring how many wave peaks fit into one metre: that number shows how many waves are in a distance, so a larger wave number means a shorter 'wavelength' and a higher 'frequency'.