Answer:
Type of Radiation Frequency Range (Hz) Wavelength Range
- gamma-rays 1020 - 1024 < 10-12 m
- x-rays 1017 - 1020 1 nm - 1 pm
- ultraviolet 1015 - 1017 400 nm - 1 nm
- visible 4 - 7.5*1014 750 nm - 400 nm
- near-infrared 1*1014 - 4*1014 2.5 μm - 750 nm
- infrared 1013 - 1014 25 μm - 2.5 μm
- microwaves 3*1011 - 1013 1 mm - 25 μm
- radio waves < 3*1011 > 1 mm