| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| ray optics concept map | 1.02 | 1 | 1237 | 94 | 22 |
| ray | 1.16 | 0.1 | 8630 | 8 | 3 |
| optics | 0.24 | 0.3 | 1664 | 94 | 6 |
| concept | 0.91 | 0.5 | 6653 | 25 | 7 |
| map | 1.43 | 0.5 | 9648 | 80 | 3 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| ray optics concept map | 1.27 | 0.3 | 384 | 87 |
