| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| index of refraction formula | 1.95 | 0.9 | 1343 | 53 | 27 |
| index | 0.5 | 0.1 | 8902 | 22 | 5 |
| of | 1.81 | 0.6 | 3617 | 18 | 2 |
| refraction | 0.42 | 1 | 5331 | 96 | 10 |
| formula | 0.59 | 0.8 | 4951 | 25 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| index of refraction formula | 1.91 | 0.7 | 2166 | 87 |
