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FAQs on Spectroscopy - Chapter Notes ,Chemistry, Engineering, Semester

1. What is spectroscopy?
Ans. Spectroscopy is the scientific study of interaction between matter and electromagnetic radiation. It involves the study of the interaction of light with matter and the interpretation of the resulting spectra. Spectroscopy helps to identify the chemical composition, structure, and properties of a substance.
2. What are the types of spectroscopy?
Ans. There are several types of spectroscopy, including: 1. Atomic spectroscopy: It deals with the study of the absorption and emission of light by atoms. 2. Molecular spectroscopy: It deals with the study of the absorption and emission of light by molecules. 3. Ultraviolet-visible (UV-Vis) spectroscopy: It deals with the study of the absorption of UV and visible light by molecules. 4. Infrared (IR) spectroscopy: It deals with the study of the absorption of IR radiation by molecules. 5. Nuclear magnetic resonance (NMR) spectroscopy: It deals with the study of the absorption and emission of radiofrequency radiation by atomic nuclei.
3. What is the application of spectroscopy?
Ans. Spectroscopy has a wide range of applications in various fields such as: 1. Chemical analysis: Spectroscopy is used to identify the chemical composition of a substance. 2. Medical diagnosis: Spectroscopy is used in medical diagnosis to detect and diagnose diseases. 3. Environmental monitoring: Spectroscopy is used to monitor the environment for pollutants and contaminants. 4. Astronomy: Spectroscopy is used to study the composition and properties of celestial objects. 5. Forensic science: Spectroscopy is used to identify and analyze trace evidence in forensic investigations.
4. What is the difference between absorption and emission spectroscopy?
Ans. Absorption spectroscopy measures the amount of light absorbed by a sample, whereas emission spectroscopy measures the amount of light emitted by a sample. In absorption spectroscopy, the sample absorbs light of a specific wavelength, resulting in a decrease in the intensity of the incident light. In emission spectroscopy, the sample emits light of a specific wavelength, resulting in an increase in the intensity of the emitted light.
5. What is the importance of spectroscopy in engineering?
Ans. Spectroscopy plays a crucial role in engineering, particularly in the fields of materials science, chemical engineering, and nanotechnology. Spectroscopy is used to study the characteristics and properties of materials, such as their composition, structure, and behavior under different conditions. It is used to design and develop new materials with specific properties and to optimize manufacturing processes. Spectroscopy is also used in quality control and testing of materials to ensure their reliability and performance.
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