| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| introduction to optics pdf | 0.28 | 0.6 | 5482 | 51 | 26 |
| introduction | 1.38 | 0.9 | 2302 | 2 | 12 |
| to | 1.08 | 0.6 | 3086 | 87 | 2 |
| optics | 0.23 | 0.4 | 3734 | 35 | 6 |
| 1.77 | 0.6 | 3194 | 65 | 3 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| introduction to optics pdf | 1.32 | 0.1 | 3761 | 70 |
