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Ernest Z. Violet light has the shortest wavelength. Visible light has a wavelength range of about 400 - 700 nm. The visible colours from shortest to longest wavelength are: violet, blue, green, yellow, orange, and red.
Therefore violet has the highest frequency and the shortest wavelength of the visible colors of light. And red has the lowest frequency and the longest wavelength of the visible colors of light. This means that it is correct to talk about the energy of an X-ray or the wavelengthof a microwave or the