| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| airy disc formula | 0.6 | 0.6 | 1816 | 94 | 17 |
| airy | 0.13 | 0.7 | 8300 | 5 | 4 |
| disc | 0.48 | 0.2 | 9078 | 88 | 4 |
| formula | 1.01 | 0.8 | 2910 | 48 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| airy disc formula | 0.24 | 0.5 | 7391 | 81 |
| airy disk formula | 1.17 | 0.3 | 1006 | 65 |
