Classification of Electromagnetic Radiation
|
Frequency |
Name of the band |
|
3 - 30 Hz |
extremely low frequency (ELF 1), ITU band no.1 |
|
30 - 300 Hz |
super low frequency (ELF 2 ), ITU band no.2, megameter waves |
|
300 - 3 kHz |
ultra low frequency (ULF), ITU band no.3 |
|
3 - 30 kHz |
very low frequency (VLF), ITU band no. 4, myriameter waves |
|
30 - 300 kHz |
low frequency (LF), ITU band no. 5, kilometer waves |
|
0.3 - 3 MHz |
medium frequency (MF), ITU band no. 6 hectometer waves |
|
3 - 30 MHz |
high frequency (HF), ITU band no. 7, decameter waves |
|
30 -300 MHz |
very high frequency (VHF), ITU band no. 8, meter waves |
|
300 MHz -3 GHz |
ultra high frequency (UHF), ITU band no. 9, decimeter waves |
|
3 - 30 GHz |
super high frequency (SHF), ITU band no. 10, centimeter waves |
|
30 -300 GHz |
extremely high frequency (EHF), ITU band no. 11, millimeter waves |
|
300 GHz- 3 THz |
part of micrometer waves, includes part of thermal infrared, ITU band no. 12 |
|
3 -30 THz |
part of micrometer waves, includes part of thermal infrared |
|
30 -300 THz |
part of micrometer waves, part of infrared |
|
300 THz - 3 PHz |
near infrared, visible, near ultraviolet |
|
3 - 30 PHz |
part of vacuum ultraviolet |
|
30 -300 PHz |
part of soft X rays |
|
300 PHz - 3 EHz |
part of soft X rays |
|
3 -30 EHz |
hard X rays and part of soft g rays |
|
30 - 300 EHz |
part of soft and part of hard g rays (limit at 510 keV) |
|
300 - 3000 EHz |
part of hard g rays and part of cosmic g rays |
|
3000 -30 000 EHz |
g rays produced by cosmic rays |
The corresponding wavelength can be obtained by dividing speed of light (3
´ 108m/s) by the frequency.About the author of this page: Dr. Atish Mozumder is college professor in Physics and freelance writer. His primary focus is to make science more interesting for the learners. He holds a Ph.D. in High Energy Physics from the University of Delhi. His other interests are Java programming and trekking in the Himalayas.>find more details
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