Question

How do the wavelength and frequency of infrared light compare to the wavelength and frequency of ultraviolet light?

Answer 1

According to the electromagnetic spectrum, ultraviolet light has wavelengths from 10nm to 400 nm, and infrared light from 750 nm to 1mm.

Which means that infrared light has a longer wavelength than ultraviolet light.

As for the frequency, we can use the equation that relates wavelength and frequency:

`\lambda=(c)/(f)`

where
`\lambda` is the wavelength ,
`c` is the speed of light, and
`f` is the frequency.

What this equation tells us is that the frequency is inversely proportional to the wavelength, in other words, if the wavelength increases the frequency will decrease.

So because infrared light has a longer wavelength than ultraviolet light, infrared has a lower frequency than ultraviolet.