Noun
the ratio of the velocity of light in a vacuum to that in a medium
Source: WordNetrefractive-index
A cat is seen looking through a glass, which has three layers of solution, with decreasing refractive index from bottom to top. Source: Internet
Adding barium also increases the refractive index. Source: Internet
Aerogel is a very low density solid that can be produced with refractive index in the range from 1.002 to 1.265. citation Moissanite lies at the other end of the range with a refractive index as high as 2.65. Source: Internet
A high refractive index contact liquid is used to achieve optical contact between the gem and the prism. Source: Internet
Air has a refractive index of about 1.0003, and water has a refractive index of about 1.3330. Source: Internet
As shown in the figure on the right, assume the refractive index of medium 1 and medium 2 are and respectively. Source: Internet