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Does a substance having high optical density have to have a high physical density?
Wiki User
∙ 12y ago
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.
Wiki User
∙ 12y ago
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What substance is the most dense and what is it's density?
All substances are dense. The density of some substances is greater than that of others. For example, the density of the earth's core material is greater than the density of the vacuum around Pluto. I think you're fishing for Osmium.
When silver coins are found in ancient shipwreck's they are coated with a black crust What question could you decide whether the silver underwent a chemical or physical change?
You would need to know if the silver underwent change that left the silver as it was originally, (in this case, having a black substance attach to it) or a change that made the silver into a new substance (like tarnishing). If the silver is still the same before and after the change, it was a physical change. If the substance is changed into a different substance after the change, it is a chemical change.
How do electrons help in transfer of heat energy?
when a substance is heated,the molecules in that substance get heat energy. we know that all of the molecule in the substance having electrons. when substance is heated. electrons becoming high energetic.and they move faster and also energy will propagate though out the substance
What has the greater density a cube of water measuring 1cmX1cmX1cm and having a mass of 1g or a block of plasting measuring 2cmX3cmX1cm with the mass of 4g?
Density = mass/volumeFor the cube of water having a mass of 1g:Volume of a cube of water measuring 1cm X 1cm X 1cm =1cm3.Density = 1g/1cm3 = 1g/cm3For the block of "plasting" having a mass of 4g:Volume of the block of plasting measuring 2cm X 3cm X 1cm = 6cm3.Density = 4g/6cm3 = 0.7g/cm3I will let you decide which has the greatest density.
What is an example of a pure substance and why is it a pure substance?
24k Gold is a pure substance. Because it is made up of just gold unlike 14k gold which is silver and gold mixed.
What does the term density and refractive index mean?
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.
What are two reasons why density is a useful property identifying substances?
Density can tell you how "pure" a substance is. Since each substance has a specific density in its "pure" state, having no other substances in its composition, by measuring it density you can tell how pure the mineral or substance is, 99.9% pure gold.
What are two reasons why density is a useful property for identifying substances?
Density is specific for each substance. Also the measurement is generally simple.
Having a high mass per unit of volume?
Having a high mass per unit of volume is what makes a substance dense. Density is defined as the quotient of the mass of a substance and its volume.
What is a chemical or physical?
PHYSICAL CHANGE:It is a temporary change in which no new substance is formed and can be reversed by simple means.CHEMICAL CHANGE:it's a permanent change in which the substance give rise to original substance having different compositions and properties. it is irreversible and accompanied by energy change.
What is a chemical or physical change?
PHYSICAL CHANGE:It is a temporary change in which no new substance is formed and can be reversed by simple means.CHEMICAL CHANGE:it's a permanent change in which the substance give rise to original substance having different compositions and properties. it is irreversible and accompanied by energy change.
How would having a knowledge of physical science be useful to a photographer?
Optics and knowledge of thereof comes from years of study in physics. Refraction, reflection and so on is from the world of optical physics.
Is Brittleness physical property?
Brittle is indeed a physical property. This physical property affects how a substance may be shaped or how it appears without having an affect on the chemical composition.
By what physical property could you identify salt?
Salt is neither acidic nor basic. It also has a pH level of 7. Therefore we conclude that salt is a neutral substance (any substance having the pH level of 7 is considered a neutral substance).
Which is the object having the highest density?
osmium has the highest density.
What are the specific properties of matter?
Matter is defined as a physical substance having mass and volume. Because of these two properties, it will also have weight (due to gravity acting on its mass) and density (the ratio of mass to volume). The mass also implies inertia, as energy must be applied to affect the motion of matter. For chemical analysis, the fundamental properties are: INERTIA - resistance to motion due to mass MASS - the amount of matter in an object VOLUME - the amount of space an object takes up WEIGHT - a measure of the pull of gravity on an object DENSITY - mass per unit of volume SPECIFIC GRAVITY - density compared to a standard (water) also SPECIFIC HEAT - energy required to raise the matter's temperature
What does 'optical' mean?
1. Of or relating to sight; visual: an optical defect.2. Designed to assist sight: optical instruments.3. Of or relating to optics.4. Relating to or using visible light: optical astronomy.5. Using light-sensitive devices.
