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Discover LudwigThe phrase "spectral line" is correct and usable in written English
It is typically used in scientific contexts, particularly in physics and astronomy, to refer to a specific wavelength of light emitted or absorbed by an atom or molecule. Example: "The spectral line observed in the experiment indicated the presence of hydrogen in the sample."
Dictionary
spectral line
noun
A dark or bright line in an otherwise continuous spectrum caused by the absorption or emission of light, at a single wavelength, by the movement of electrons between energy levels of an atom or molecule
Exact(60)
Here we have the first spectral line.
The first spectral line is at 1.775 kilohertz.
The result is that each spectral line separates into several closely spaced lines.
…the spectral lines of hydrogen the "Balmer series" (see spectral line series).
Rates in different spectral bands and event grades, spectral line identification.
His work focuses on spectral line studies of neutral and ionized ISM at high redshifts.
The presence of a predominant indigo spectral line suggested the name.
By far the richest clues about the structure of the atom came from spectral line series.
During his observations he also noted a yellow spectral line near, but distinct from, the prominent lines of sodium.
Daino, B., Spano, P., Tamburrini, M. & Piazzolla, S. Phase noise and spectral line shape in semiconductor lasers.
For this form of InSe, the only active Raman spectral line is 121 (cm−121
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