Keyword Analysis & Research: refractive index of air. 2. group index

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
refractive index of air. 2. group index	0.97	0.9	8168	26	39
refractive	0.59	0.3	2054	64	10
index	1.22	0.4	3662	19	5
of	1.85	1	7536	24	2
air.	0.64	0.7	6888	81	4
2.	1.94	0.3	6143	89	2
group	0.8	1	7754	79	5
index	0.65	1	5742	76	5

Keyword	CPC	PCC	Volume	Score
refractive index of air. 2. group index	0.59	1	6300	70