less than the angle of refraction.
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.
greater than the angle of refraction
The angle of incidence is the angle at which a ray of light (which is not at right angles to a surface) strikes a surface. The angle of refraction is the angle at which a ray of light, having passed through a surface, travels through the body of a substance. Normally the angle of incidence and the angle of refraction are not the same.
It is 1.
less than the angle of refraction
Its optical density.
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!
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.
Optical Density. Which often is caused by normal density.
Light travels slower in a material with greater optical density.
optical density is the amount of light
The effect of decreasing incubation time on optical density is that optical density decreases. Incubation time and optical density have a proportional relationship.