A spectrum is an image or representation that can be presented in scientific phenomena or research, or associated with a supernatural or imaginary scenario.
For physics, a spectrum can be a series of different images. A electromagnetic spectrum It is the result obtained when a beam of electromagnetic radiation is scattered through a transparent dispersing medium. This type of spectrum is used to identify various substances. Other kind of spectrum is the frequency, a phenomenon of waves (sound, light or electromagnetic) that serves to measure the distribution of amplitudes of a certain frequency.
For the mathematicsOn the other hand, the concept of spectrum is found when it refers, for example, to an operator A and it is a set of values.
You can also talk about spectrum in medicine, when the variety or breadth of species or gradations contained for a substance, microbe or condition is elucidated. For example, when you refer to a "broad spectrum" drug, it means that it covers a variety of health conditions and conditions.
In chemistry there is also the spectrum. It is an image or record that an excited substance presents. It can be emission and absorption. This spectrum is found in nuclear magnetic resonance, spectrometry, or flourimetry techniques.
Finally, a very common meaning of the word "spectrum" is when it refers to a ghost or supernatural or imaginary representation that causes terror or alteration. Ghosts or ghosts appear in the folklore of many cultures, but in addition to the collective environment, they have a lot to do with the psyche of each subject. They are considered spirits, souls in pain or dead who manifest themselves among the living in various ways with the purpose of transmitting a message. A common type of spectrum is the "poltergeist," which manifests itself by moving objects, causing noise, and altering living things in malicious ways.
