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nadya68 [22]
3 years ago
7

The ratio of the speed of light in a medium to the speed of light in a vacuum is called its ______________ index.

Physics
2 answers:
hammer [34]3 years ago
7 0

Answer:

Refractive APEX Verified

Explanation:

Amiraneli [1.4K]3 years ago
3 0
The ratio of the speed of light v in a medium to the speed of light in a vacuum c is called its Refractive Index n
v/c=n
Different substances have different Refractive Indices (plural of Index). Values are always bigger than 1.
Refractive index of water is 1.33
Refractive index of glass is about 1.4
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