1. Gamma ray — more than 30 EHz
2. X-Ray — 30 EHz to 30 PHz
3. Ultraviolet — 30 PHz to 790 THz
4. Visible — 790 THz to 430 THz
5. Infrared — 430 THz to 300 GHz
6. Microwave — 300 GHz to 300 MHz
7. Radio — 300 GHz to 3 Hz
2. X-Ray — 30 EHz to 30 PHz
3. Ultraviolet — 30 PHz to 790 THz
4. Visible — 790 THz to 430 THz
5. Infrared — 430 THz to 300 GHz
6. Microwave — 300 GHz to 300 MHz
7. Radio — 300 GHz to 3 Hz
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