| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| refraction occurs only in a blank wave | 0.6 | 0.1 | 3682 | 65 | 38 |
| refraction | 1.23 | 0.7 | 8224 | 28 | 10 |
| occurs | 1.62 | 1 | 5621 | 60 | 6 |
| only | 1.01 | 0.1 | 2437 | 25 | 4 |
| in | 0.48 | 0.3 | 4092 | 42 | 2 |
| a | 0.84 | 0.6 | 4924 | 39 | 1 |
| blank | 0.55 | 0.6 | 7766 | 36 | 5 |
| wave | 1.6 | 0.4 | 8142 | 83 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| refraction occurs only in a blank wave | 1.83 | 0.6 | 4345 | 57 |
