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!
refraction
pHEMA is an abbreviation of the polymer poly(2-hydroxyethyl methacrylate). This material forms hydrogen in water and was first used in optical implant.
A compound microscope, like the common optical microscope is used to study objects too small to see with the naked eye. The difference between a common optical microscope, and a compound microscope is the number of objective lenses. A compound microscope will contain several lenses. This reduces distortion, and gives one multiple lenses with which to adjust magnification.
the optical system of a microscope is the objectives
An optical microscope uses light and one or more lenses to view cells. An optical microscope with two or more lenses is called a compound optical microscope.
No, optical medium and optical density are not the same. Optical medium refers to the material through which light propagates, such as air, water, or glass. Optical density, on the other hand, is a measure of how much a material can refract or absorb light, which affects how light passes through it.
It's not necessary. If a compound has high optical density, it means that it absorbs more light at the given wavelength than some reference compound. There is no simple relation between density of matter and optical density. Even more I am pretty sure you can find a lot of compounds with lower densities (of matter) but having high optical density.
A material's index of refraction is related to its optical density through Snell's Law, which relates the angles of incidence and refraction as light passes through the interface between two materials with different refractive indices. A higher index of refraction usually corresponds to a higher optical density, meaning that light travels slower through the material.
In spectrophotometry, optical density and absorbance both measure how much light is absorbed by a sample. However, optical density is a logarithmic measure of the ratio of incident light to transmitted light, while absorbance is a linear measure of the amount of light absorbed by the sample.
Its optical density.
Optical density is a measurement of how much light is absorbed or transmitted by a material. It is often used to quantify the amount of a substance in a solution by measuring the absorbance of light passing through it. A higher optical density indicates more absorption of light.
NO!
The result of a beam of light passing through a material relies entirely on the optical density of the material. If its density is lower than air, then the angle of incidence will be less (more acute) than the angle at which it enters. The opposite is true for a material with higher optical density.
An optical density of 1 indicates that 90% of light is absorbed by the material being measured. It is commonly used in spectrophotometry to quantify the amount of light absorbed by a sample. A higher optical density value indicates greater light absorption.
The optical density of a medium is not the same as its physical density. The physical density of a material refers to the mass/volume ratio. Optical density determines how much a light wave is slowed down as it passes through a medium. The more optically dense a material is, the slower that a wave will move through the material.The refractive index is a measurement of optical density. A medium with a low optical density, would have also a low refractive index.For example air, having a low optical density has a refractive index of 1.0003, whereas water, with a higher optical density, has a higher refractive index of 1.333.
Light travels slower in a material with greater optical density.
When light enters a material of higher optical density, it will bend towards the normal. This deviation from the straight path is due to the change in speed of light as it travels from one medium to another.