| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| refractive index of air with respect to glass | 0.04 | 0.8 | 3873 | 50 | 45 |
| refractive | 0.05 | 0.1 | 2865 | 44 | 10 |
| index | 0.51 | 0.8 | 2102 | 63 | 5 |
| of | 1.46 | 0.2 | 1863 | 78 | 2 |
| air | 0.16 | 1 | 8856 | 37 | 3 |
| with | 0.77 | 0.1 | 1774 | 20 | 4 |
| respect | 0.7 | 0.8 | 5349 | 96 | 7 |
| to | 0.94 | 0.1 | 1260 | 54 | 2 |
| glass | 1.88 | 0.4 | 5162 | 90 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| refractive index of air with respect to glass | 1.4 | 0.1 | 6051 | 77 |
| refractive index of water glass and air | 0.96 | 0.2 | 5531 | 67 |
| refractive index of glass with respect water | 1.42 | 0.3 | 2265 | 39 |
| refractive index of a glass | 0.01 | 0.3 | 3210 | 5 |
| refractive index of air | 1.12 | 0.8 | 4639 | 1 |
| optical refractive index of air | 0.61 | 0.3 | 1545 | 88 |
| refractive index of glass range | 0.4 | 0.5 | 1429 | 13 |
| index of refraction of glass | 0.6 | 1 | 2459 | 72 |
| refractive index of water and air | 0.1 | 0.6 | 8041 | 58 |
| refractive indices of glass and water | 0.5 | 0.9 | 8751 | 52 |
| absolute refractive index of glass and water | 1.09 | 0.4 | 1467 | 96 |
| refractive index from air to glass | 0.64 | 0.7 | 7996 | 72 |
| glass index of refraction vs water | 0.45 | 0.7 | 9306 | 16 |
| refractive index of water | 0.61 | 0.8 | 5001 | 45 |
| refractive index of glass | 0.24 | 0.1 | 3643 | 71 |
