A line in an absorption spectrum, appearing as a black line at visible wavelengths.
- Look at the spectrum of light from a distant object and you will see characteristic bright and dark lines that appear similar to those from earthly material, except for one difference: the positions of the lines are shifted toward the red.
- These missing wavelengths are characterized by dark lines in the spectrum.
- In 1860 Bunsen and Kirchhoff observed dark lines in the spectrum of a light source passed though burning substances.
For editors and proofreaders
Syllabification: dark line
Definition of dark line in:
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.