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Date/Time Thumbnail Dimensions User Comment; current: 02:32, 26 April 2013: 1,239 × 1,754 (39 KB): Hobbitjm86 {{subst:Upload marker added by en.wp UW}} {{Information |Description = {{en|Figure 1-4 Electromagnetic spectrum diagram from The Army Institute for Professional Development, Principles of Radio Wave Propagation.
Date/Time Thumbnail Dimensions User Comment; current: 21:43, 3 September 2023: 1,616 × 939 (201 KB): BalalaikaMaster: A diagram of the electromagnetic spectrum showing the type, wavelength (with examples), frequency, and black body emission temperature, with corrected amplitude, as a bitmap PNG.
A diagram of the electromagnetic spectrum, showing various properties across the range of frequencies and wavelengths. The electromagnetic spectrum is the full range of electromagnetic radiation, organized by frequency or wavelength. The spectrum is divided into separate bands, with different names for the electromagnetic waves within each band.
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 . [ 4 ] 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 ...
Radio waves are defined by the ITU as: "electromagnetic waves of frequencies arbitrarily lower than 3000 GHz, propagated in space without artificial guide". [5] At the high frequency end the radio spectrum is bounded by the infrared band. The boundary between radio waves and infrared waves is defined at different frequencies in different ...
To change this template's initial visibility, the |state= parameter may be used: {{Electromagnetic spectrum | state = collapsed}} will show the template collapsed, i.e. hidden apart from its title bar. {{Electromagnetic spectrum | state = expanded}} will show the template expanded, i.e. fully visible.
•To set it to display one particular list while keeping the remainder collapsed (i.e. hidden apart from their headings), use: {{Electromagnetism |expanded=listname}} or, if enabled, {{Electromagnetism |listname}}
The spectrum in a rainbow. A spectrum (pl.: spectra or spectrums) [1] is a condition that is not limited to a specific set of values but can vary, without gaps, across a continuum. The word spectrum was first used scientifically in optics to describe the rainbow of colors in visible light after passing through a prism.