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A spectral line is a weaker or stronger region in an otherwise uniform and continuous spectrum. It may result from emission or absorption of light in a narrow frequency range, compared with the nearby frequencies. Spectral lines are often used to identify atoms and molecules.
A spectral line is a discrete wavelength of light emitted or absorbed by atoms, ions or molecules. Learn about the physics, history and uses of spectral lines in various fields of science, such as spectroscopy, astronomy and mass spectrometry.
Learn what spectral lines are, how they are formed by emission or absorption of light, and how they are used to identify atoms and molecules. Explore the spectral lines of hydrogen, the Zeeman effect, Doppler effect, and more with examples and FAQs.
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- A spectral line is a spectrum in which light of only a certain wavelength is emitted or absorbed, rather than a continuous range of wavelengths, ra...
- The splitting of a beam of light into radiations of different wavelengths or frequencies after passing through a prism or diffraction grating is ca...
- The spectrum of electromagnetic radiation produced or absorbed by an electron during transitions between different levels of energy within an atom...
- Frequency is defined as the number of oscillations of a wave per unit time being measured in hertz(Hz). The distance between two nearest crests or...
- The visible light spectrum includes seven colours. Those colours are violet, indigo, blue, green, yellow, orange and red. The colour with the highe...
Apr 10, 2022 · Explain how emission line spectra and absorption line spectra are formed; Describe what ions are and how they are formed; Explain how spectral lines and ionization levels in a gas can help us determine its temperature; We can use Bohr’s model of the atom to understand how spectral lines are formed.
A spectral line is like a fingerprint that can be used to identify the atoms, elements or molecules present in a star, galaxy or cloud of interstellar gas. If we separate the incoming light from a celestial source using a prism, we will often see a spectrum of colours crossed with discrete lines.
Explain how emission line spectra and absorption line spectra are formed; Describe what ions are and how they are formed; Explain how spectral lines and ionization levels in a gas can help us determine its temperature; We can use Bohr’s model of the atom to understand how spectral lines are formed.
Learn what spectral lines are, how they are related to transitions of atoms, ions or molecules, and how they affect the optical spectrum. Find out about different types of spectral lines, their widths, shapes, and applications in spectroscopy and optics.
