The longest wavelength of light that a human eye can perceive depends on the
individual, but is generally in the neighborhood of 750 nanometers (7.5 x 10-7 m).
Light with that wavelength is perceived by the retina/brain system as colored red.
Red is the longest wavelength of visible light
Red is the longest wavelength of visible light
The longest wavelength / lowest frequency visible light is the red end of the spectrum. The shortest wavelength / highest frequency visible light is the violet end of the spectrum.
red,orange,yellow,green,blue,indigo,violet
Red light has the longest wavelength.
The longest visible wavelength of light appears red. "Longest wavelength" is equivalent to 'lowest frequency'.
The longest visible wavelengths are thoseat the red end of the spectrum (rainbow).
Red light has the longest wavelength within the visible spectrum.
The longest visible wavelengths are red,
Red color in the visible spectrum has longest wavelength.
Red has the longest wavelength in the visible spectrum.
Red light has the longest wavelength in the visible light spectrum.