| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| refractive index of glass with respect to air | 0.28 | 0.4 | 2202 | 19 | 45 |
| refractive | 0.26 | 0.7 | 580 | 62 | 10 |
| index | 1.77 | 0.1 | 2236 | 82 | 5 |
| of | 0.17 | 0.4 | 9039 | 63 | 2 |
| glass | 1.45 | 0.9 | 6824 | 8 | 5 |
| with | 1.01 | 0.6 | 7666 | 84 | 4 |
| respect | 0.16 | 0.7 | 1634 | 16 | 7 |
| to | 1.89 | 0.3 | 953 | 81 | 2 |
| air | 1.15 | 0.6 | 6266 | 6 | 3 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| refractive index of glass with respect to air | 0.04 | 0.7 | 9745 | 34 |
| refractive index of water glass and air | 0.19 | 0.4 | 143 | 68 |
| refractive index of glass with respect water | 1.22 | 0.2 | 9537 | 29 |
| the refractive index of glass | 0.42 | 0.3 | 7348 | 67 |
| refractive index of glass range | 1.49 | 0.4 | 7216 | 95 |
| index of refraction of glass | 0.75 | 0.7 | 9626 | 30 |
| the refractive index of glass and water | 1.36 | 1 | 4398 | 62 |
| refractive index of optical glass | 1.82 | 1 | 4549 | 41 |
| glass refractive index measurement | 1.63 | 0.7 | 3703 | 24 |
| glass index of refraction chart | 0.54 | 1 | 5730 | 86 |
