13. 1 Infrared Spectroscopy and the Electromagnetic Spectrum Energy Frequency(v)in Hz 10 18 16 10 14 12 100 y rays X rays Ultraviolet Infrared Microwaves Radio waves 10-10 10-6 Wavelength ()in m Wavelength ()in m 380nm 500nm 600nm 700nm780nm 38×10-m 7.8×10-7m Thomson· Brooks Cole13.1 Infrared Spectroscopy and the Electromagnetic Spectrum