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Figure 2820 shows the wavelengths of gamma ray, x-ray, ultraviolet, visible light, near infrared, far infrared, microwave, radio, and incident electrons in electron microscopes.
Figure 2820. Various wavelengths of lights, microwave, radio, and incident electrons in EMs.
Table 2820. Visible spectra and their colors.
| Wavelength (nm) |
Energy (eV) |
Frequency (103 THz) |
Color |
> 740
|
|
|
Not visible (infrared) |
| 625 - 740 |
|
|
Red |
| 700 |
1.77 |
4.29 |
| 650 |
1.91 |
4.62 |
| 600 |
2.06 |
5.00 |
Orange |
| 565 - 590 |
|
|
Yellow |
| 580 |
2.14 |
5.16 |
| 550 |
2.25 |
5.45 |
Green |
| 500 - 520 |
|
|
Cyan |
| 520 |
2.38 |
|
| 500 |
2.48 |
5.99 |
| 450 |
2.75 |
6.66 |
Blue |
| 380 - 435 |
|
|
Violet |
| 400 |
3.10 |
7.50 |
| < 380 |
|
|
Not visible (ultraviolet) |
| 190 |
6.53 |
|
|
