Visible Spectrum: All Colors & Where Is Brown? - Physics Forums
Aug 25, 2004 · What is the visible spectrum? The visible spectrum is the range of electromagnetic radiation that our eyes are able to detect. It includes all the colors of the rainbow, from red to violet. How many colors are in the visible spectrum? There are seven colors in the visible spectrum: red, orange, yellow, green, blue, indigo, and violet.
Can IR Rays Be Shifted Into the Visible Spectrum Using Simple …
Feb 24, 2009 · Shifting from IR to visible spectrum has many potential applications, including night vision, medical imaging, and security cameras. It can also be useful in scientific research, such as studying the properties of materials or detecting pollutants in the environment.
Seeing more than the visible light spectrum - Physics Forums
Jun 28, 2016 · The visible light spectrum is just a small portion of the electromagnetic spectrum, which also includes radio waves, microwaves, infrared radiation, ultraviolet radiation, X-rays, and gamma rays. There is no definitive endpoint to the electromagnetic spectrum, so technically, there is no limit to what lies beyond the visible light spectrum.
Transitions: Visible Spectrum & n=3 to n=1 - Physics Forums
May 19, 2010 · The visible spectrum refers to the range of electromagnetic radiation that is visible to the human eye. In the context of transitions from n=3 to n=1, it specifically refers to the wavelengths of light that are emitted or absorbed when an electron moves from the third energy level to the first energy level in an atom.
Why is the Spectrum of Light Only 7 Colors? - Physics Forums
May 3, 2005 · The visible spectrum is very nearly continuous, again observe a rainbow. Discontinuities are at the quantum level, far below the sensitivity of your eye. In other words, as far as your eye is concerned he spectrum is continuous. You computer monitor only knows about 3 colors, Red, Green and blue. From those 3 you can recreate the visible spectrum.
Angular width of first-order visible spectrum - Physics Forums
Mar 23, 2020 · What is the angular width of the first-order visible spectrum? The angular width of the first-order visible spectrum is approximately 137 degrees. This is the angle between the red and violet ends of the spectrum when viewed from a distance of one meter. How is the angular width of the first-order visible spectrum measured?
Mean colour of visible spectrum? - Physics Forums
Jan 20, 2015 · The concept of a mean color in the visible spectrum is arbitrary and influenced by historical and cultural factors. Our eyes have three color sensors that have broad overlapping responses, and the colors we perceive are not necessarily directly related to the mean or peak of the light spectrum.
Diffraction Grating and Visible Light - Physics Forums
Mar 25, 2017 · "You're using a diffraction grating o view the 400 to 700 nm visible spectrum. Suppose you can see the spectrum through the third order. a) Show that the first and second order spectra never overlap regardless of grating spacing. b) show that the second and third order spectra always overlap. Homework Equations n λ = dsinΘ The Attempt at a ...
Index of refraction of different wavelengths - Physics Forums
Dec 13, 2011 · Monochromatic light of variable wavelength is incident normally on a thin sheet of plastic film in air. The reflected light is a maximum only for 482.9 and 676.0 in the visible spectrum. What is the minimum thickness of the film ? Homework Equations 2nt=m*lambda 2nt=(m+1/2)*lambda The Attempt at a Solution
Converting non-visible light to visible spectrum for photography
Sep 20, 2020 · Non-visible light can be converted to visible spectrum for photography using a process called "spectrum conversion". This involves using specialized equipment, such as filters and lenses, to filter out specific wavelengths of light and only allow visible light to pass through.