The red color in the visible region lies in the wavelength of 600 – 750 nm. The visible light spectrum is the fraction of the spectrum that is visible to humans.
The distance between two successive troughs or crests is known as the wavelength. The peak of the wave is the highest point, while the trough is the lowest.
The wavelength is also defined as the distance between two locations in a wave that have the same oscillation phase.
The length of a wave is measured in its propagation direction. The wavelength is measured in meters, centimeters, nanometers, and other units since it is a distance measurement.
The portion of the spectrum visible to the human light is known as the visible light Spectrum.
Visible light has a range of wavelengths from about 400-750 nm. The red color in the visible region lies in the wavelength of 600 – 750 nm.
To learn more about the wavelength, refer to the link;
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