Colors and Wavelengths
For other types of light (based on the technology used to make the light):
- radio: f is 1MHz AM, 100 MHz FM
so ? is 1 km to 10 cm
- microwaves/radar: 10 cm to 1 mm
- infrared: 1 mm to 700 nm
- visible 700 nm to 400 nm
- ultraviolet 400 nm to 10 nm
- x-ray & ? ray 10 nm on down