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What is the difference between material density optical density?
Wiki User
∙ 15y ago
I was also looking for the answer to this question. I decided to see what Wikipedia had to say about it, and found this:
http://en.wikipedia.org/wiki/Absorbance
This article kinda explains how they are related. Good luck!
Wiki User
∙ 16y ago
Wiki User
∙ 15y agoMaterial density is "regular" density. Take lead. It is heavy for a small volume of it; it's pretty dense. Water? Not so much. Lead sinks in it. Wood, however, floats on water (at least most kinds of wood). That's material density. Weight per unit of volume of the material. Material density. Optical density is a term applied to how well light passes through a material. If light is little affected passing through it, that is, if almost all the light goes through it that goes into it, it has a very low optical density. Like clear glass. Very low optical density. Start coloring the glass and less light can get through it; it has a higher optical density than clear glass. The amount of light that can get through a material is addressed in its transmittance, and the amount of light that is "blocked" by a material is addressed in its opacity. There you go. We've just given you a good jumping off point for your study of optics. The difference is pretty straight forward. Material density has to do with mass (weight) per unit volume of material. It's a measure of the affect of gravity on a given volume. Optical density is has to do with the passage of light - electromagnetic radiation (in optical wavelengths) - through a given material. The more the light can get through, the lower the optical density.
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Its optical density.
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NO!
Light travels in a material with greater .......?
Optical Density. Which often is caused by normal density.
Light travels slower in a material with greater what?
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