![]() ![]() The instrument used for studying line spectra is the Line spectra of either type are useful inĬhemical analysis, since they reveal the presence of particularĮlements. Of certain frequencies of light by the cooler, outer layers of the Theįraunhofer lines appearing in the spectrum of the sun are anĮxample of a dark-line spectrum they are caused by the absorption It consists of a series of dark lines superimposed onĪ continuous spectrum, each line corresponding to a frequency whereĪ bright line would appear if the gas were incandescent. A dark-line, or absorption, spectrum is the reverse ofĪ bright-line spectrum it is produced when white light containingĪll frequencies passes through a gas not hot enough to be Spectrum, consisting of a series of bright lines against a darkīackground. If the gas is made incandescent by heat or an electricĭischarge, the resulting spectrum is a bright-line, or emission, I.e., one composed of individual lines at specific frequenciesĬharacteristic of the gas, rather than a continuous band of allįrequencies. Produce a continuous spectrum but instead produces a line spectrum, Spectra are produced by all incandescent solids and liquids and by ![]() The spectrum formed from white light contains all colors, orįrequencies, and is known as a continuous spectrum. ![]() May be spread into a spectrum according to frequency or wavelength. InĪddition to visible light, other types of electromagnetic radiation Red at the long-wavelength (low-frequency) end of the spectrum. The spectrum through indigo, blue, green, yellow, and orange, to Ranging from violet at the short-wavelength (high-frequency) end of Eachĭifferent wavelength or frequency of visible light corresponds to aĭifferent color, so that the spectrum appears as a band of colors Dispersion, the separation of visible light into a spectrum, mayīe accomplished by means of a prism or a diffraction grating. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |