absorption spectrum

简明释义

吸收光谱

英英释义

例句

1.Astronomers use the absorption spectrum to study the atmospheres of distant planets.

天文学家利用吸收光谱研究遥远行星的大气层。

2.The absorption spectrum of a substance reveals how it interacts with different wavelengths of light.

物质的吸收光谱揭示了它如何与不同波长的光相互作用。

3.In a laboratory, students observed the absorption spectrum of colored solutions under a spectrometer.

在实验室里，学生们在分光光度计下观察了彩色溶液的吸收光谱。

4.By studying the absorption spectrum, researchers can determine the presence of specific gases in the atmosphere.

通过研究吸收光谱，研究人员可以确定大气中特定气体的存在。

5.The scientist analyzed the absorption spectrum to identify the chemical composition of the star.

科学家分析了吸收光谱以确定星星的化学成分。

作文

The concept of the absorption spectrum is fundamental in the field of physics and chemistry, especially when studying the interaction between light and matter. An absorption spectrum refers to the range of wavelengths or frequencies of electromagnetic radiation that a substance absorbs. When white light passes through a cool gas or a liquid, specific wavelengths of light are absorbed by the atoms or molecules present in that medium. This phenomenon results in dark lines or bands appearing in the spectrum of light that emerges from the medium, which can be analyzed to determine the composition of the substance. Understanding the absorption spectrum is crucial for various scientific applications, including identifying chemical substances and understanding their properties. For example, each element has a unique absorption spectrum, much like a fingerprint. By analyzing the absorption spectrum of a star, scientists can deduce its composition, temperature, density, and even its distance from Earth. This information is vital for astrophysics and helps us understand the universe better.In practical terms, the absorption spectrum can be observed using a spectrometer, an instrument that disperses light into its component colors. When a sample is placed in the path of a light source, the spectrometer captures the light that passes through the sample and measures the intensity of light at different wavelengths. The result is a graph that shows the intensity of light absorbed at each wavelength, creating a visual representation of the absorption spectrum.Moreover, the absorption spectrum has significant implications in various fields such as environmental science, where it is used to monitor pollutants in the atmosphere. Certain gases absorb specific wavelengths of infrared light, and by measuring these absorptions, scientists can quantify the concentration of these gases in the air. This application is essential for tracking climate change and understanding human impact on the environment.In conclusion, the absorption spectrum is a powerful tool that provides insight into the molecular makeup of substances and their interactions with light. From astrophysics to environmental monitoring, the study of absorption spectrum enables scientists to uncover the mysteries of the universe and address critical issues facing our planet. As technology advances, the techniques used to analyze absorption spectra will continue to evolve, leading to new discoveries and a deeper understanding of the world around us.

吸收光谱的概念在物理和化学领域中是基础，尤其是在研究光与物质之间的相互作用时。吸收光谱指的是一种物质吸收的电磁辐射的波长或频率范围。当白光通过冷气体或液体时，特定波长的光会被该介质中的原子或分子吸收。这种现象导致从介质中发出的光谱中出现暗线或带，这可以通过分析来确定物质的成分。理解吸收光谱对各种科学应用至关重要，包括识别化学物质及其性质。例如，每种元素都有独特的吸收光谱，就像指纹一样。通过分析一颗恒星的吸收光谱，科学家可以推断其成分、温度、密度，甚至距离地球的远近。这些信息对天体物理学至关重要，有助于我们更好地理解宇宙。在实际操作中，可以使用分光仪观察吸收光谱，这是一种将光分散成其组成颜色的仪器。当样品放置在光源的路径中时，分光仪捕捉通过样品的光并测量不同波长的光强度。结果是一个图表，显示每个波长处吸收的光强度，创建了吸收光谱的可视化表示。此外，吸收光谱在环境科学等多个领域具有重要意义，用于监测大气中的污染物。某些气体吸收特定波长的红外光，通过测量这些吸收，科学家可以量化空气中这些气体的浓度。这一应用对于追踪气候变化和理解人类对环境的影响至关重要。总之，吸收光谱是一个强大的工具，提供了对物质分子组成及其与光相互作用的深刻见解。从天体物理学到环境监测，吸收光谱的研究使科学家能够揭示宇宙的奥秘，解决我们星球面临的关键问题。随着技术的进步，用于分析吸收光谱的技术将继续发展，带来新的发现和对我们周围世界的更深入理解。