| Region | Frequency | Energy (eV) | ||||
|---|---|---|---|---|---|---|
| Radio | 0 Hz | to | 3 GHz | < 10-5 | ||
| Microwave | 3 GHz | to | 3 THz | 10-5 to 0.01 | ||
| Infrared | 3 THz | to | 430 THz | 0.01 to 2 | ||
| Visible light | 430 THz | to | 750 THz | 2 to 3 | ||
| Ultraviolet | 750 THz | to | 300 PHz | 3 to 103 | ||
| X-Rays | 300 PHz | to | 30 EHz | 103 to 105 | ||
| Gamma Rays | 30 EHz | to | ∞ | > 105 | ||