Q:

Which color of light has the most energy?

A:

Quick Answer

Of the visible light spectrum, violet waves have the most energy. The visible violet light's wavelength measures at 400 nanometers.

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Full Answer

Visible light refers to the correspondence of a wavelength, measured in nanometers, or nm, to a color, ranging from red to violet. The light spectrum also contains colors that cannot be seen because their wavelengths are too short, such as ultraviolet light, which causes sunburns, or too long like infrared light, which radiates heat.

The visible light spectrum is expressed through wavelengths ranging from 400 to 700 nm — violet being the highest in energy at 400 nm, and red being the lowest in energy at 650 nm.

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