| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| a metal surface is illuminated | 0.02 | 0.4 | 4630 | 100 | 30 |
| a | 0.35 | 0.3 | 7924 | 9 | 1 |
| metal | 0.61 | 0.4 | 6643 | 93 | 5 |
| surface | 1.02 | 1 | 1263 | 80 | 7 |
| is | 1.74 | 0.7 | 5418 | 14 | 2 |
| illuminated | 0.81 | 1 | 1770 | 84 | 11 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| a metal surface is illuminated | 0.2 | 0.4 | 6357 | 76 |
| a metal surface is illuminated by light | 1.4 | 0.2 | 1532 | 13 |
| a metal surface is illuminated by radiation | 1.09 | 0.6 | 3643 | 52 |
| a metal surface is illuminated alternatively | 1.23 | 0.8 | 7537 | 95 |
| surface of certain metal is first illuminated | 0.14 | 1 | 8594 | 11 |
| when a metal surface is illuminated by light | 0.61 | 0.2 | 8415 | 14 |
| a metallic surface is illuminated | 1.7 | 0.7 | 312 | 73 |
| a photoelectric surface is illuminated | 0.38 | 1 | 7416 | 86 |
| what is a light metal | 0.42 | 0.8 | 1757 | 92 |
| ability of a metal to reflect light | 1.02 | 0.1 | 5271 | 11 |
| light is reflected off a surface | 0.1 | 0.6 | 2458 | 85 |
| what is surface light | 0.18 | 0.7 | 509 | 49 |
| the unit of illuminance on a surface | 0.91 | 0.2 | 8170 | 8 |
| does metal reflect light | 1.86 | 0.5 | 1490 | 72 |
| reflection and metal surface | 0.52 | 0.1 | 1158 | 34 |
| light-emitting surface | 0.27 | 0.1 | 2448 | 57 |
