What does spectrum stand for?
spectrum (noun) an ordered array of the components of an emission or wave see more » Discuss these SPECTRUM abbreviations with the community: Know the definition for SPECTRUM? Know the meaning of SPECTRUM? Don't keep it to yourself! Add it HERE! Citation Use the citation options below to add these abbreviations to your bibliography.
What does spectrum mean in science terms?
Wiktionary (3.00 / 4 votes) Rate this definition:
- spectrum noun Specter, apparition. ...
- spectrum noun A range; a continuous, infinite, one-dimensional set, possibly bounded by extremes. ...
- spectrum noun Specifically, a range of colours representing light (electromagnetic radiation) of contiguous frequencies; hence electromagnetic spectrum, visible spectrum, ultraviolet spectrum, etc. ...
What rhymes with spectrum?
Words that rhyme with spectrum include bosom, bottom, custom, random, welcome, album, fathom, forum, maximum and problem. Find more rhyming words at wordhippo.com!
What is meant by order of a spectrum?
When the dispersive element in a spectrometer/spectrograph is a diffraction grating it produces different diffraction orders: first, second, third, fourth, -1, -2, etc. The real spectrum is in the first order. If a line emission from an atom or ion appears at, for example, 200 nm will appear at 400 nm in second order, 600 nm in third order etc.
What is called spectrum?
spectrum, in physics, the intensity of light as it varies with wavelength or frequency. An instrument designed for visual observation of spectra is called a spectroscope, and an instrument that photographs or maps spectra is a spectrograph.
What is a spectrum short answer?
A spectrum (plural spectra or spectrums) is a condition that is not limited to a specific set of values but can vary, without gaps, across a continuum. The word was first used scientifically in optics to describe the rainbow of colors in visible light after passing through a prism.
What is spectrum explain with example?
Spectrum is the range of colors of wavelength energy sent out from a light source when viewed through a prism. An example of a spectrum is a rainbow. noun. 4.
What is a spectrum in science?
A spectrum is simply a chart or a graph that shows the intensity of light being emitted over a range of energies.
What is meant by spectrum 10th class?
Spectrum is the band of colours obtained on a screen when white light passes through a prism and splits into its constituent colours. The colours of the spectrum are violet (V), indigo (1), blue (B), green (G), yellow (Y), orange (O), and red (R).
What is a spectrum Class 8?
Answer: The term spectrum refers to the order and arrangement of different colours of light constituting the white light. A glass splits white light into its constituent colours because different colours of light have different angles of deviation.
What is a spectrum Class 7?
Answer: The band of seven colors obtained, when a white light splits into its constituent colors on striking the surface of glass prism is called as a spectrum.
What is spectrum in chemistry class 11?
Class 11 Chemistry Structure of Atom. Emission And Absorbtion Spectra. EMISSION AND ABSORBTION SPECTRA. Atomic spectra: Absorption and Emission spectra. This is the phenomenon that gave serious blow to Rutherford model.It can be defined as: 'splitting of light' into various colours or colour bands is called spectra.”
What is meant by spectrum Brainly?
Brainly User. A spectrum is defined as the characteristic wavelengths of electromagnetic radiation (or a portion thereof) that is emitted or absorbed by an object or substance, atom, or molecule. Examples.
What is meant by spectrum in chemistry?
A spectrum is a graph that shows the intensity of radiation at different wavelengths or the response of the atomic or molecular system to different wavelengths of the radiation. Examples of absorption and fluorescence spectra are shown in Figures 1.
What is called spectrum in chemistry?
A spectrum is defined as the characteristic wavelengths of electromagnetic radiation (or a portion thereof) that is emitted or absorbed by an object or substance, atom, or molecule.
What is a line spectrum in physics?
Line spectra are sharp lines of definite wavelengths. It is the characteristic of the emitting substance. It is used to identify the gas. Atoms in the gaseous state, i.e. free excited atoms emit line spectrum.
Why don't NASA and other space programs use gamma rays, and not radio waves to transfer signals?
Gamma rays can easily pass through clouds and are not blocked by clouds. Since radio waves have less energy than gamma rays, it's more likely for r...
A good absorber is also a good emitter: True or False?
True. Dark matter substances are good at both emitting and absorbing radiation.
What 2 properties are common to all types of electromagnetic radiation?
1. They travel at the speed of light. 2. They can travel across a vacuum.
What is the connection between emission and absorption spectrum?
Emission lines refer to the radiation emitted by a glowing hot gas, whereas absorption lines are obtained when cool atmospheric gas absorbs the sam...
What is meant by Spectrum in physics and chemistry?
Whether it is physics or chemistry, the meaning of spectrum remains the same. It is the band of colours obtained on a screen when white light is al...
What does spectrum mean in science?
In Latin, spectrum means "image" or " apparition " , including the meaning " spectre " . Spectral evidence is testimony about what was done by spectres of persons not present physically, or hearsay evidence about what ghosts or apparitions of Satan said. It was used to convict a number of persons of witchcraft at Salem, Massachusetts in the late 17th century. The word "spectrum" [Spektrum] was strictly used to designate a ghostly optical afterimage by Goethe in his Theory of Colors and Schopenhauer in On Vision and Colors .
What is a spectrum in physics?
The spectrum in a rainbow. A spectrum (plural spectra or spectrums) is a condition that is not limited to a specific set of values but can vary, without steps, across a continuum. The word was first used scientifically in optics ...
What is the frequency spectrum of radio?
The radio spectrum is the part of the electromagnetic spectrum corresponding to frequencies lower below 300 GHz, which corresponds to wavelengths longer than about 1 mm.
What is the spectrum of electromagnetic radiation?
Electromagnetic spectrum refers to the full range of all frequencies of electromagnetic radiation and also to the characteristic distribution of electromagnetic radiation emitted or absorbed by that particular object. Devices used to measure an electromagnetic spectrum are called spectrograph or spectrometer. The visible spectrum is the part of the electromagnetic spectrum that can be seen by the human eye. The wavelength of visible light ranges from 390 to 700 nm. The absorption spectrum of a chemical element or chemical compound is the spectrum of frequencies or wavelengths of incident radiation that are absorbed by the compound due to electron transitions from a lower to a higher energy state. The emission spectrum refers to the spectrum of radiation emitted by the compound due to electron transitions from a higher to a lower energy state.
What is the color of the light spectrum?
When all the visible frequencies are present equally, the perceived color of the light is white, and the spectrum is a flat line. Therefore, flat-line spectra in general are often referred to as white, whether they represent light or another type of wave phenomenon (sound, for example, or vibration in a structure).
What is the absorption spectrum of a compound?
The absorption spectrum of a chemical element or chemical compound is the spectrum of frequencies or wavelengths of incident radiation that are absorbed by the compound due to electron transitions from a lower to a higher energy state.
What is the mass spectrum of Titan?
Mass spectrum of Titan 's ionosphere. A plot of ion abundance as a function of mass-to-charge ratio is called a mass spectrum. It can be produced by a mass spectrometer instrument. The mass spectrum can be used to determine the quantity and mass of atoms and molecules.
What is the atomic spectrum of an atom?
This spectrum is known as the line emission spectrum or discontinuous spectrum. As electrons are part of the atom, Line spectra are also called atomic spectra Inert gases, metal vapors, and atomized non-metals form this kind of spectra. The atomic spectrum of the elements is a “characteristic property” of the elements and is often termed as ...
What is the difference between continuous and line spectrum?
The key difference between continuous spectrum and line spectrum is that the continuous spectrum contains all the wavelengths in a given range whereas the line spectrum contains only a few wavelengths.
What is discontinuous spectrum?
They emit radiation over a broad range of wavelengths; thus the spectra appear smooth and continuous. (b) Discontinuous Spectrum: A discontinuous electromagnetic spectrum is a spectrum that contains gaps, holes, or breaks in terms of the wavelengths that it contains. Depending on the type of lines obtained, a discontinuous spectrum can be ...
What is the energy given off by matter in the form of rays or high-speed particles?
Radiation is the energy given off by matter in the form of rays or high-speed particles. The visible light that comes from a lamp to the rays used to figure out a fractured bone, all are forms of electromagnetic radiation . And the series of these different radiations is called the electromagnetic spectrum.
What does the dark line on the spectrum of light mean?
These dark lines indicate that the wavelengths have been absorbed by the medium through which the light has passed. An absorption spectrum shows us which wavelengths from light were absorbed by a particular gas. It looks like a continuous spectrum, or rainbow, with some black lines.
What is line spectra?
Line Spectra or Atomic Spectra. An electron in the excited state when makes the transition to lower energy states, the light of certain fixed wavelengths is emitted. These emitted wavelengths appear as sharp bright lines in the dark background forming a spectrum.
What are the two types of emission spectrum?
There are two types of emission spectrum. (a) Continuous Spectrum (Thermal or Black body spectra): Remember, a rainbow is a continuous spectrum of the seven colors beautifully merging into one another. Dense gases or solid objects when radiate heat, this spectrum is formed.
What is the spectrum of light?
spectrum. the distribution of colours produced when white light is dispersed by a prism or diffraction grating. There is a continuous change in wavelength from red, the longest wavelength, to violet, the shortest. Seven colours are usually distinguished: violet, indigo, blue, green, yellow, orange, and red.
What is the spectrum of a particle?
Physics. an array of entities, as light waves or particles, ordered in accordance with the magnitudes of a common physical property, as wavelength or mass: often the band of colors produced when sunlight is passed through a prism, comprising red, orange, yellow, green, blue, indigo, and violet.
Which color has the shortest wavelength?
The spectrum making up visible light contains light in the colors violet, indigo, blue, green, yellow, orange, and red, with violet having the shortest wavelength and highest frequency, and red having the longest wavelength and lowest frequency.
What is the band of colors produced when sunlight is passed through a prism?
an array of entities, as light waves or particles, ordered in accordance with the magnitudes of a common physical property, as wavelength or mass: often the band of colors produced when sunlight is passed through a prism, comprising red, orange, yellow, green, blue, indigo, and violet. this band or series of colors together ...
What does the word spectrum mean?
According to Collins English Dictionary, Your Dictionary and the American Heritage Unabridged Dictionary of the English Language, the word spectrum is a noun that can mean a couple of different things.
What are synonyms and antonyms of spectrum?
There are many different words that one can use in place of the word spectrum (kənˈkɜːr). These are called synonyms, which are words and phrases that have the same meaning as another word or phrase.
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Kevin Miller is a growth marketer with an extensive background in Search Engine Optimization, paid acquisition and email marketing. He is also an online editor and writer based out of Los Angeles, CA.
What is spectrum in radio?
Spectrum relates to the radio frequencies allocated to the mobile industry and other sectors for communication over the airwaves. Because the mobile industry has demonstrated — time and time again — its potential to generate economic value and social benefit, operators are urging national regulators to release sufficient, ...
Why is additional spectrum important?
The issue of pricing has never been more vital. Additional spectrum is central to expanding and upgrading mobile broadband services – and will be core to the success of 5G. While tempting for some governments, revenue maximisation should not be a primary consideration when licensing using methods such as auctions.
What does "on the spectrum" mean?
“On the spectrum” usually refers to the specific set of behavioral and developmental problems and the challenges associated with autism spectrum disorder. A diagnosis of ASD means that your child’s communication, social, and play skills are affected in some way.
What does it mean when a child is on the autism spectrum?
Where your child falls on this spectrum means they exhibit different behavioral patterns.
What is the most severe autism spectrum disorder?
Where your child falls on this spectrum means they exhibit different behavioral patterns. Classic autism, or autistic disorder, is the most severe of the autism spectrum disorders. Milder variants are Asperger’s Syndrome, sometimes called high-functioning autism, and PDD-NOS, or atypical autism.
How many people on the autism spectrum are classic?
According to the Autism Spectrum Resource Center, only 20% of people on the autism spectrum have classic autism. The overwhelming majority fall somewhere on the milder range of the spectrum.
Can a teacher diagnose a child on the spectrum?
Special education teachers. Determining where your child falls “on the spectrum” is not a brief process. There is no single medical test that can diagnose it definitively; instead, in order to accurately pinpoint your child’s problem, multiple evaluations and tests are necessary.
What is spectrum in telecommunications?
Spectrum in telecommunications refers to the range of radio frequencies allocated to a service operator within the telecom industry and related sectors — in order for communication over the airwaves to take place. The more frequencies (coverage and capacity bands) a network operator has, the more people it can connect to at faster speeds.
What does it mean to have more spectrum?
As stated earlier, having more spectra means the network operator can connect more subscribers at faster data or voice speeds. A basic way to explain it is this. Consider the spectrum to be a vehicle lane. Now, more lanes going in a direction means that there will be a free flow of traffic.
What is spectrum usage charge?
There’s usually a Spectrum Usage Charge which the winning bidder pays annually to the government. This is different from the bidding amount. Once the contractual period has elapsed, the process is repeated all over again.
Does Ghana have spectrum?
There has been interest surrounding spectrum in telecommunications ever since the Government of Ghana granted a free spectrum to the nation’s two leading network service providers — MTN Ghana and Vodafone Ghana. The grant which would last for three months is to enable the two telcos to connect more subscribers at faster data speeds — at a time that internet usage has increased due to several everyday activities moving to the cyberspace in the wake of the COVID-19 pandemic.#N#The importance of government’s generosity, however, seems to have been lost on many Ghanaians as not a lot of people know the importance of spectrum in telecommunications and how it impacts their everyday internet usage. So what I’ll be doing with this article is to explain what a spectrum is and its function in every network service provider’s infrastructural setup.
Overview
A spectrum (plural spectra or spectrums) is a condition that is not limited to a specific set of values but can vary, without gaps, across a continuum. The word was first used scientifically in optics to describe the rainbow of colors in visible light after passing through a prism. As scientific understanding of light advanced, it came to apply to the entire electromagnetic spectrum. It thereby became a m…
Etymology
In Latin, spectrum means "image" or "apparition", including the meaning "spectre". Spectral evidence is testimony about what was done by spectres of persons not present physically, or hearsay evidence about what ghosts or apparitions of Satan said. It was used to convict a number of persons of witchcraft at Salem, Massachusetts in the late 17th century. The word "spectrum" [Spektrum] was strictly used to designate a ghostly optical afterimage by Goethe in his Theory of C…
Physical science
In the 17th century, the word spectrum was introduced into optics by Isaac Newton, referring to the range of colors observed when white light was dispersed through a prism. Soon the term referred to a plot of light intensity or power as a function of frequency or wavelength, also known as a spectral density plot.
Biological science
Antibiotic spectrum of activity is a component of antibiotic classification. A broad-spectrum antibiotic is active against a wide range of bacteria, whereas a narrow-spectrum antibiotic is effective against specific families of bacteria. An example of a commonly used broad-spectrum antibiotic is ampicillin. An example of a narrow spectrum antibiotic is Dicloxacillin, which acts on beta-lactamase-producing Gram-positive bacteria such as Staphylococcus aureus.
Mathematics
In mathematics, the spectrum of a matrix is the multiset of the eigenvalues of the matrix.
In functional analysis, the concept of the spectrum of a bounded operator is a generalization of the eigenvalue concept for matrices.
In algebraic topology, a spectrum is an object representing a generalized cohomology theory.
Social science
In social science, economic spectrum is used to indicate the range of social class along some indicator of wealth or income. In political science, the term political spectrum refers to a system of classifying political positions in one or more dimensions, for example in a range including right wing and left wing.