| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| speed of light wavelength x frequency | 1.6 | 0.5 | 246 | 84 | 37 |
| speed | 1.04 | 0.2 | 1692 | 56 | 5 |
| of | 1.2 | 0.7 | 7516 | 47 | 2 |
| light | 1.18 | 0.5 | 4962 | 80 | 5 |
| wavelength | 0.14 | 0.8 | 1605 | 51 | 10 |
| x | 1.9 | 0.3 | 8726 | 95 | 1 |
| frequency | 0.91 | 0.4 | 2850 | 32 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| speed of light wavelength x frequency | 0.41 | 0.9 | 63 | 25 |
