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  1. Modern sources place indigo in the electromagnetic spectrum between 420 and 450 nanometers, which lies on the short-wave side of color wheel (RGB) blue, towards (spectral) violet. The correspondence of this definition with colors of actual indigo dyes, though, is disputed.
    en.wikipedia.org/wiki/Indigo
    The wavelength of the visible indigo light is about 445 nm (nanometers). The indigo colored objects are the objects that reflect indigo colored light and observe all the other colors of light. When this indigo color light reaches our eyes, the object appeared in indigo color.
    www.physics-and-radio-electronics.com/physics/el…
    The frequency of wavelength range for indigo is around 425-450 nm and frequency of 670-700 THz. In the above color spectrum chart, indigo is made a subset of violet color. The low range of the color explains why it is difficult to distinguish this color in the spectral band.
    sciencestruck.com/color-spectrum-chart
  2. Visible Light Spectrum Wavelengths and Colors - Science Notes …

  3. What is the spectrum of the 7 colors? - Color With Leo

    The visible spectrum derived from electromagnetic radiation encompasses the 7 main color bands detectable by human vision: red, orange, yellow, green, blue, indigo, and violet. These colors have specific wavelength ranges and …

  4. Visible Light Spectrum Overview and Chart - ThoughtCo

    May 2, 2024 · Most people cannot distinguish indigo from blue or violet, so many color charts omit it. By using special sources, refractors, and filters, you can get a narrow band of about 10 nanometers in wavelength that is considered …

  5. Electromagnetic spectrum - Visible light

  6. What Are the Colors in the Visible Spectrum?

    Sep 14, 2023 · To remember the seven colors of the visible light spectrum, try memorizing the name "Roy G. Biv." The abbreviation represents red, orange, yellow, green, blue, indigo and violet.

  7. Visible Light: Definition, Wavelength, Uses, and Pictures …

    Mar 9, 2022 · Light is a form of electromagnetic wave and constitutes a small part of the electromagnetic spectrum that is visible to the human eye. Hence, it is called visible light. Since visible light is a form of a wave, it is defined by its …

  8. A Color Spectrum Chart With Frequencies and Wavelengths

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  10. Electromagnetic (EM) Waves | OCR GCSE Combined Science A …

  11. The Electromagnetic Spectrum - University of Rochester