Oracle
Which color of visible light has the longest wavelength? Answer with the color name only, in lowercase.
Answer
red
- visible_light_colors
- The colors of the visible spectrum; use the standard rainbow ordering described by NASA.
- sources
- science.nasa.gov, en.wikipedia.org, encyclopedia britannica / standard physics references (e.g. nasa visible light spectrum chart): visible light spans roughly 380-750 nm, with red at the long-wavelength end (~620-750 nm) and violet at the short-wavelength end (~380-450 nm)., general physics/optics knowledge: within the visible spectrum, red light has the longest wavelength (~620-700nm) and violet the shortest (~380-450nm), general physics/optics reference (e.g. nasa science: 'visible light spectrum' and standard physics textbooks) stating the visible spectrum runs from violet (~380-450nm, shortest wavelength) to red (~620-700nm, longest wavelength), general physics/optics reference (e.g. visible light spectrum: red ~620-750nm has the longest wavelength among the visible colors, violet ~380-450nm the shortest), general physics/optics reference consensus (e.g. standard visible-light spectrum tables): red light has the longest wavelength (~620-750 nm) among visible colors, with violet having the shortest (~380-450 nm)., nasa science (science.nasa.gov/ems/09_visiblelight) and britannica's entry on the visible spectrum: the visible spectrum runs roughly 380-750 nm, with red at the long-wavelength end (~620-750 nm) and violet at the short-wavelength end (~380-450 nm); both state red has the longest wavelength of visible light., nasa science - 'tour of the electromagnetic spectrum: visible light' (https://science.nasa.gov/ems/09_visiblelight/) states visible light ranges from approximately 380 nm (violet) to 700 nm (red), with red having the longest wavelength., nasa science, 'the electromagnetic spectrum': https://science.nasa.gov/ems/09_visiblelight/ (visible light spectrum ordered violet-to-red by increasing wavelength, red ~620-750nm being the longest), nasa science, visible light, wavelengths of visible light: https://science.nasa.gov/ems/09_visiblelight/, nasa science, visible light: https://science.nasa.gov/ems/09_visiblelight/, nasa science, ‘visible light’ (https://science.nasa.gov/ems/09_visiblelight/); nasa space place, ‘the visible light magic window’ (https://spaceplace.nasa.gov/review/magic-windows/vis.html), nasa science: 'the electromagnetic spectrum' / hyperphysics 'light and the eye' - visible spectrum ranges from violet (~380-450nm) to red (~620-750nm); red has the longest wavelength of visible light, nasa science: 'tour of the electromagnetic spectrum' / general physics/optics references on the visible spectrum, which list red as having the longest wavelength (~620-750 nm) among visible colors, with violet having the shortest (~380-450 nm)., nasa science: tour of the electromagnetic spectrum / general physics/optics references stating the visible spectrum runs from violet (~380nm, shortest) to red (~700nm, longest), physics fact: within the visible light spectrum (~380-700nm), red light has the longest wavelength (~620-750nm), as commonly taught in optics/physics references (e.g. nasa science, britannica)., physics fact: within the visible spectrum (~380-700nm), red light has the longest wavelength (~620-750nm), a standard result found in physics/optics references (e.g., nasa science, britannica), physics reference (e.g. britannica/nasa visible-light spectrum): visible light ranges roughly 380nm (violet) to 700nm (red); red has the longest wavelength among visible colors., physics reference (electromagnetic spectrum / visible light physics): red light has the longest wavelength of the visible colors, ranging roughly 620-700 nm, at the opposite end from violet (~380-450 nm), physics/optics reference (visible-light spectrum ordering): among visible light, red has the longest wavelength (~700nm), violet the shortest (~380-400nm)., physics/optics reference: the visible light spectrum ordered by wavelength (roygbiv), where red has the longest wavelength (~620-750nm) and violet the shortest (~380-450nm) — e.g. nasa science 'tour of the electromagnetic spectrum' and standard physics textbooks, physics/optics reference: within the visible spectrum (~380-700 nm), red light has the longest wavelength (~620-700 nm), while violet has the shortest (~380-450 nm). this is standard, well-established physics (e.g., encyclopaedia britannica, hyperphysics, any introductory optics textbook)., standard physics reference (e.g. britannica/nasa physics of visible light): the visible spectrum runs roughly 380-700 nm, with red at the long-wavelength end (~620-750 nm) and violet at the short-wavelength end (~380-450 nm), so red has the longest wavelength among visible colors., standard physics reference (e.g. nasa science, encyclopedia britannica): the visible spectrum runs from red at ~700nm (longest wavelength) to violet at ~400nm (shortest wavelength), standard physics reference (e.g. nasa/optics textbooks): visible light spectrum order by wavelength, longest to shortest, is red, orange, yellow, green, blue, indigo, violet. red has the longest wavelength (~620-750nm)., standard physics reference on the electromagnetic/visible light spectrum (e.g. nasa science: 'visible light... ranges from about 380 to 700 nanometers... red has the longest wavelength'; also consistent with any introductory optics textbook describing the roygbiv ordering), standard physics reference: visible light spectrum ordering violet-blue-green-yellow-orange-red by increasing wavelength (~380nm to ~750nm); red is longest., standard physics reference: visible light spectrum ranges from violet (~380-450nm, shortest) to red (~620-750nm, longest wavelength)., standard physics/optics fact: within the visible spectrum, red light has the longest wavelength (~620-750nm), violet the shortest (~380-450nm)., standard physics/optics reference (e.g. britannica/nasa descriptions of the visible spectrum): visible light spans ~380-700nm, with red at the long-wavelength end (~620-700nm) and violet at the short-wavelength end (~380-450nm); red therefore has the longest wavelength among visible colors., standard physics/optics reference (e.g. common textbook description of the visible spectrum): visible light ranges roughly from violet (~380-450nm, shortest) to red (~620-750nm, longest)., standard physics/optics reference (e.g. encyclopaedia britannica, nist/physics textbooks): the visible spectrum ranges from violet (~380-450nm, shortest wavelength) to red (~620-750nm, longest wavelength). red light has the longest wavelength of visible light., standard physics/optics reference (e.g. visible light spectrum ~380-750nm): red light has the longest wavelength (~620-750nm) of visible colors, while violet has the shortest (~380-450nm)., standard physics/optics reference (e.g. visible spectrum ordering roygbiv, where red sits at the long-wavelength end ~620-700nm and violet at the short-wavelength end ~380-450nm), standard physics/optics reference (e.g. visible spectrum wavelength chart): of the named spectral colors, red has the longest wavelength (~620-700 nm), longer than orange, yellow, green, blue, and violet., standard physics/optics reference on the visible light spectrum (e.g. nasa science: 'visible light' overview and standard physics textbooks), which order visible light by wavelength as violet (~380-450nm) through red (~620-700nm), with red having the longest wavelength., standard physics/optics reference: of the colors in visible light, red has the longest wavelength (~700nm) and violet the shortest (~380nm); this is a well-established physical constant independent of block height., standard physics/optics reference: the visible light spectrum ranges roughly from 380nm (violet) to 700nm (red), with red having the longest wavelength of the visible colors., standard physics/optics reference: the visible spectrum ranges from violet (~380nm, shortest wavelength) to red (~700nm, longest wavelength). this is a well-established fact of physics (e.g. encyclopedia britannica, nasa electromagnetic spectrum reference)., standard physics/optics references on the electromagnetic spectrum (e.g. nasa science, university physics textbooks) describing the visible light spectrum roygbiv, where red has the longest wavelength (~620-750nm) and violet the shortest (~380-450nm)., standard visible-light spectrum physics: red light has the longest wavelength (~620-750 nm) among visible colors, per the classic roygbiv ordering (e.g. nasa science, 'tour of the electromagnetic spectrum'; encyclopaedia britannica, 'color' article)., standard visible-light spectrum physics: red light has the longest wavelength (~620-750nm) among visible colors, per common optics references (e.g. nasa science, wikipedia 'visible spectrum')., standard visible-light spectrum physics: red light occupies roughly 620-750 nm, the longest-wavelength band of visible light (violet is shortest at ~380-450 nm).
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