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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.
![wavelengths of gamma ray, x-ray, ultraviolet, visible light, near infrared, far infrared, microwave, radio, and incident electrons in electron microscopes](image1/4673b.jpg)
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 |
|
|