Ultraviolet light has a wavelength below 400 nanometers, infrared;s wavelength is less than 700 nanometers or so. Frequency is inversely proportional to wavelength, so ultraviolet light has a much a much higher frequency than infrared.
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Ultraviolet light has a higher frequency than infrared light. Infrared light has longer wavelengths and lower frequencies compared to ultraviolet light.
Infrared and Ultraviolet light fall just outside human vision. The frequency of infrared light is less than the frequency of visible red light. There are different definitions and classifications of infrared, but the frequency ranges from 3 x 10 11 Hz (300 Gigahertz or 1000 micrometer wavelength) to about 4.3 x 10 14 Hz (0.7 micrometer wavelength). Ultraviolet's frequency is greater than the frequency of Violet light. This can range from 7.5 x 10 14 Hz (400 nanometer wavelength) to 3.0 x 10 16 Hz (10 nanometer wavelength). See related links.
Ultraviolet light has higher frequencies than infrared light. Ultraviolet light has shorter wavelengths and higher energy compared to infrared light which has longer wavelengths and lower energy.
The opposite of ultraviolet light is infrared light. Infrared light has longer wavelengths and lower frequencies compared to ultraviolet light, which has shorter wavelengths and higher frequencies.
The opposite of infrared light is ultraviolet light, which has shorter wavelengths and higher frequencies compared to infrared light.
Ultraviolet light has a higher frequency than microwaves. Ultraviolet light falls in the range of the electromagnetic spectrum with higher frequency and shorter wavelengths compared to microwaves which have lower frequency and longer wavelengths.