Index of refraction and Ratio

Index of refraction noun - The ratio of the velocity of light in a vacuum to that in a medium.

Ratio and index of refraction are semantically related. In some cases you can use "Ratio" instead a noun phrase "Index of refraction".

Ratio noun - The relationship in quantity, amount, or size between two or more things.

Index of refraction and ratio are semantically related. Sometimes you can replace phrase "Index of refraction" with "Ratio", this terms are similar.

Nearby Word: ration