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3. Frequencies allocated to industrial, scientific and medical uses
3.1 General
In electromagnetic spectra, electrical waves cover a frequency range from 1 Hz to 1 THz (10 12 Hz) (see figure 8 ). Higher in frequency, we find optical rays (light, IR) and ionizing rays (X-rays, γ-rays).
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Frequencies allocated to industrial, scientific and medical uses
Frequencies allocated to industrial, scientific and medical uses
Conclusion
