Spectroscopy Flashcards, test questions and answers

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What is Spectroscopy?

Spectroscopy is the study of how light interacts with matter. This field of science is used to identify and analyze a wide range of materials, from gases to stars. Spectroscopy can provide valuable information about the structure, composition, and properties of materials.Light is composed of different colors or wavelengths that carry energy. When light interacts with a material, some wavelengths will be absorbed while others will be scattered or reflected back outwards. By studying which colors are absorbed by a material and which ones are reflected, scientists can determine its composition and structure. Spectroscopy is used to measure the absorption or emission spectra of various materials in all areas of science including astronomy, chemistry, physics and biology. In astronomy, spectroscopy is used to study stars as well as galaxies and other astronomical objects by analyzing their light emissions or absorption spectra. Astronomers use this information to determine the temperature, pressure and chemical composition of these objects as well as their age, motion and distance from Earth. This data can also be used to learn more about star formation processes in our universe. In chemistry , spectroscopy is a powerful tool for scientists who want to analyze molecules without having to physically touch them through means such as mass spectrometry (which separates compounds based on mass) or nuclear magnetic resonance (NMR). By studying how molecules absorb certain wavelengths of light during chemical reactions , chemists can gain insight into their structures and reactions taking place between them. In physics , spectroscopy plays an important role in understanding atomic structures such as electrons that make up atoms. By studying how atoms react when they absorb different frequencies or photons (particles) of light , researchers have been able to gain insight into the laws governing atomic structures. This knowledge has helped physicists understand why some elements behave differently than others at different temperatures. Spectroscopy has many applications across many fields in science today; it allows us to probe deep into matter’s secrets without having to physically touch it – giving us invaluable insight into our universe.