Spectrum

Spectrum (from Latin. spectrum (representation, image, vision) is a set of images that arise as a result of the perception of information.
In a narrow sense, it is the totality of all values of any value.
Using the concept of “electromagnetic radiation spectrum”, it is possible to describe the totality of all values of its intensity for any wavelengths, frequencies or energy of its quanta. By tradition, it is customary to divide it into several parts. From the very beginning of the spectrum, this is the gamma, X-ray, ultraviolet and visible spectrum. You can also note the infrared, microwave and radio ranges. The fact of the spectrum manifestation occurs as a result of a change in the dispersion of radiation in terms of wavelengths, frequencies or energies of its quanta, or on the basis of direct measurements of the intensity of radiation in a wide range of its frequencies.
Modification of electromagnetic radiation is carried out using spectrometers in the visible, ultraviolet and infrared ranges. When studying the radiation spectrum in the gamma and X-ray ranges, as well as in the radio range, other equipment and special techniques are used for each of these ranges.
With the help of electromagnetic radiation receivers, it is possible to register the radiation energy level for certain wavelengths, frequencies or quanta of electromagnetic radiation. An observer can detect three different types of radiation spectrum, which depend on the parameters of the object: its aggregate state and temperature. This is a continuous spectrum, a linear emission spectrum and an absorption spectrum.
There are also Kirchhoff’s laws.
Neutral radiation
The electromagnetic radiation spectrum, which is widespread in the optical range, is a series of parallel colored stripes or lines. The same radiation spectrum is observed in the radiation ranges invisible to the eye (see Radiation receiver, eye). The presence of radiation with such a spectrum is typical for heated gases under low pressure. Kirchhoff’s law. The dependence of the location of the lines in the radiation spectrum and their shape depends on the chemical composition of the emitting gas or gas mixture.
Voluminous
The sphere of electromagnetic radiation in the optical range is a continuous spectrum, which consists of a continuous color band that changes its color from red to purple. When the human eye (see Radiation receiver, eye) is able to perceive electromagnetic radiation in other wavelengths, it could observe the duration of this continuous strip for both short and long waves. In another sense, if waves of any size are present in the radiation stream, it has a continuous spectrum. The spectrum of such radiation is distributed in the form of heated solids, as well as from the solar and most stellar photospheres (see Suns, photosphere). There are also Kirchhoff’s laws.
Moisture
The transmission of light through the absorption spectrum in the optical range is a continuous spectrum with a number of dark lines or bands. The same radiation spectrum is observed in the radiation ranges invisible to the eye (see Radiation receiver, eye). Electromagnetic radiation has the ability to absorb. It passed through a gas with a temperature that is lower than that of the object emitting this radiation. Kirchhoff’s law. The location of dark lines and bands in the spectrum depends on the chemical composition of the absorbing gas or mixture of gases.