| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| what is refractive index | 0.61 | 0.3 | 8230 | 65 | 24 |
| what | 1.82 | 0.1 | 7625 | 82 | 4 |
| is | 0.37 | 0.5 | 9981 | 90 | 2 |
| refractive | 1.68 | 0.3 | 6612 | 46 | 10 |
| index | 1.63 | 0.5 | 8692 | 27 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what is refractive index | 0.09 | 0.7 | 2964 | 58 |
