wave number

简明释义

波数

英英释义

例句

1.The wave number is typically measured in units of reciprocal centimeters (cm⁻¹).

wave number通常以倒厘米（cm⁻¹）为单位进行测量。

2.In quantum mechanics, the wave number is related to the momentum of a particle.

在量子力学中，wave number与粒子的动量有关。

3.In spectroscopy, the wave number is often used to express the frequency of light.

在光谱学中，wave number常用于表达光的频率。

4.You can calculate the wave number by taking the inverse of the wavelength.

你可以通过取波长的倒数来计算wave number。

5.The wave number represents the number of wavelengths per unit distance.

波数wave number代表每单位距离内的波长数量。

作文

In the study of physics and chemistry, the concept of wave number is crucial for understanding various phenomena related to waves. The wave number, defined as the number of wavelengths per unit distance, is typically expressed in reciprocal meters (m⁻¹). It provides a measure of how many cycles of a wave exist in a given length, making it a vital parameter in fields such as spectroscopy, acoustics, and optics. When we consider electromagnetic radiation, such as light, the wave number becomes particularly significant. It is inversely related to the wavelength of the light; that is, as the wavelength decreases, the wave number increases. This relationship can be described mathematically by the equation: wave number = 1/wavelength. Thus, shorter wavelengths correspond to higher wave numbers, which means that light with high energy, like ultraviolet or X-rays, has a greater wave number than visible light.In spectroscopy, the wave number is used to identify substances based on their unique spectral lines. Each molecule has a distinct set of vibrational and rotational transitions that occur at specific wave numbers. By analyzing these transitions, scientists can determine the composition of a sample, its temperature, and even its concentration. For instance, infrared spectroscopy relies heavily on wave numbers to analyze molecular vibrations. The peaks observed in an infrared spectrum correspond to specific wave numbers, allowing researchers to identify functional groups within molecules.Furthermore, the wave number is not limited to electromagnetic waves. In acoustics, it also plays a role in understanding sound waves. The wave number of a sound wave is determined by its frequency and the speed of sound in the medium through which it travels. As with light, higher frequencies result in higher wave numbers, leading to sounds that are perceived as higher in pitch. This relationship is essential in fields such as music and audio engineering, where the manipulation of sound waves is fundamental.In conclusion, the concept of wave number serves as a bridge connecting various scientific disciplines. Its relevance spans from the identification of chemical compounds to the analysis of sound waves. By comprehending the significance of wave number, students and professionals alike can deepen their understanding of wave behavior and its applications in real-world scenarios. Therefore, mastering the concept of wave number is not only beneficial for academic pursuits but also essential for practical applications in science and technology.

在物理和化学的研究中，wave number 的概念对于理解与波相关的各种现象至关重要。wave number 被定义为单位距离内的波长数，通常以米的倒数（m⁻¹）表示。它提供了在给定长度内存在多少个波的周期的度量，使其成为光谱学、声学和光学等领域的重要参数。当我们考虑电磁辐射，如光时，wave number 变得尤为重要。它与光的波长成反比；也就是说，随着波长的减小，wave number 增加。这个关系可以通过以下方程描述：wave number = 1/波长。因此，较短的波长对应于较高的 wave number，这意味着高能量的光，如紫外线或X射线，其 wave number 高于可见光。在光谱学中，wave number 用于根据其独特的光谱线识别物质。每种分子都有一组独特的振动和旋转跃迁，这些跃迁发生在特定的 wave number 上。通过分析这些跃迁，科学家可以确定样品的成分、温度甚至浓度。例如，红外光谱法在分析分子振动时严重依赖于 wave number。在红外光谱中观察到的峰值对应于特定的 wave number，使研究人员能够识别分子中的官能团。此外，wave number 不仅限于电磁波。在声学中，它也在理解声波方面发挥作用。声波的 wave number 由其频率和声速决定，声波在传播的介质中。与光一样，较高的频率导致较高的 wave number，导致被感知为音调较高的声音。这种关系在音乐和音频工程等领域中至关重要，在这些领域中，波的操控是基础。总之，wave number 的概念作为连接各种科学学科的桥梁。它的相关性从化合物的识别延伸到声波的分析。通过理解 wave number 的重要性，学生和专业人士都可以加深对波动行为及其在现实世界中的应用的理解。因此，掌握 wave number 的概念不仅对学术追求有益，而且对科学和技术中的实际应用至关重要。