What is a Continuous Spectrum 3. What is a Bright Line Spectrum 4. This value series is the opposite of the discrete spectrum. The values taken to build up a continuous spectrum can be energy, wavelength , etc.
The most common example for a continuous spectrum is the spectrum of light emitted by excited atoms of hydrogen. This spectrum is created due to free electrons, which become bound to a hydrogen ion and emit photons that tend to smoothly spread over a wide range of wavelengths. These type of spectra can be generated for many elements by vaporizing the element in a flame.
While the colors in the above representations of spectra are pretty, their usefulness is limited. On top of that, they would convey no information at all if it the observed radiation was outside the limits of the human eye. Scientists, then, tend to use a different representation which permits a more rigorous analysis.
Consider the spectrum as shown below. The top spectrum shows a narrow segment of Sun's spectrum of ultraviolet UV light. This representation has been modeled after the visible spectra. Remember that our eyes can't see ultraviolet light; however, as with the visible spectra shown above, the horizontal axis the x-axis shows the energy or "color" of the observed light. The spectrum covers wavelengths of energy between and angstroms.
In that representation, we can see where the emission by the Sun is most active, but again we see little about the intensity of the radiation. There is no quantitative measure of the light emitted as a function of energy. The graph below the Sun's UV spectrum shows the same information in a more quantitative format. Line Spectrum : Line spectrum contains only a few wavelengths. Continuous Spectrum Vs Line Spectrum. Continuous Spectrum Example Read More. What are the 7 Rainbow Colors?
Read More. What Does Spectral Line Mean? About Us. Continuous spectrum and line spectrum are two types of spectra; their main difference is that continuous spectrum contains no gaps whereas line spectrum contains many gaps.
However, it is important to know more about absorption spectrum and emission spectrum, which are the two main spectra, before learning the difference between continuous spectrum and line spectrum since both absorption and emission spectra are responsible for creating continuous and line spectra.
What is an Absorption Spectrum 2. What is an Emission Spectrum 3. What is a Continuous Spectrum 4. What is a Line Spectrum 5. What is the difference between Continuous Spectrum and Line Spectrum. When electromagnetic radiation is passed through a certain material, some characteristic wavelengths are absorbed by the elements in the material. However, the re-emitted photons are not re-emitted in the same direction. Due to the absence of this absorbed electromagnetic radiation, dark lines appear in the spectrum.
An absorption spectrum is plotted with absorbance in the y-axis and wavelength or frequency in the x-axis. Absorption spectra are used in various analysis techniques such as atomic absorption spectroscopy and UV-absorption spectroscopy.
These techniques are used in identifying a certain species in a given mixture or confirming the identity of a particular species. When a beam of electromagnetic radiation is sent through a sample of atoms or molecules, the electrons in them absorb energy and transfer themselves to a higher energy state.
Then they fall back to the earlier energy states they occupied by giving away additional energy they absorbed.
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