Why Are Some Materials Transparent and Others Not

It is to do with the way light interacts with the material. When this happens the object appears to us as opaque.

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Translucent materials such as tissue paper do not allow light to pass through as easily and images cannot be seen clearly.

. One example of this is glass- it is a solid material we can see right through which means that it is transparent. A transparent material is a material that lets light travel through it meaning we can see through the object completely. Electrons inside atoms are also moving.

Think of a window in your house- as its transparent we can see everything that is happening inside and outside. Materials that allow the transmission of light waves through them are called optically transparent. So while a material can be transparent in certain range of frequencies like glass is for visible light it can be quite opaque in others.

Some pigments we consider to be transparent or translucent and others opaque. If the light is absorbed by the material it is black. Lets see the reasons.

Why are things blue shifted and not violet shifted. Instead they vibrate a little bit and then re-emit the energy back away from the material. When electrons move through a wire the resulting current generates a magnetic field.

Transparency is caused by the transmission of light waves. So the real question is not why is glass transparent but why arent all materials transparent. If the vibrational energy of a light wave is passed through the object then the object appears clear or transparent.

Answer 1 of 3. So wood to some frequencies of light is see through but not to the light waves we can see. That is why we can have mobile and radio signal from inside houses but only see through glass.

These properties are caused by absorption reflection and scattering of light. This arises because for certain frequencies electron can catch the photon and get excited to the higher energy state. They dont actually do it perfectly theres an effect called skin depth.

But in some atoms like those of iron a kind of subatomic force makes the spins of. In either case reflection occurs because the vibrations of the surface electrons do not pass their energy down through the material. This is essentially an EM question and so you should be looking in Jackson physics graduate text.

Glass is one of those materials which means its electrons require much more energy before they can skip from one energy band to another and back again. Some materials allow partial transmission of light. It has no internal grain boundaries and hence it looks transparent.

Its the result of the motion of electrons inside atoms. If photons come in at lower energies they will not interact with the material and pass right trough. Silicon for example looks like this.

Opaque substances do not allow transmission. Opaque materials do not allow transmission of light waves. There are few reasons by which we see transparent material as very clear but translucent material fuzzy.

Think of these as different rows of seats in the stadium stands. Replies 4 Views 4K. There are materials which do not absorb light in the visible but which are opaque for the entire visible spectrum because of the difference in the index of refraction between air and the material.

Chemically pure undoped window glass and clean river or spring water are prime examples of this. If it is refracted the material is white. This means that in some materials most of the light can pass through it and it may only absorb light waves not of visible light.

Pigments usually considered to be opaque are actually transparent in a highly refractive medium. Optically transparent materials are essential in many scientific and manufacturing applications and new ways of utilizing these are being worked on all the time some of which are highlighted later in the article. They orbit the central nucleus of atoms and spin on their axes.

In most atoms the resulting magnetic effect is weak. This does vary with materials and frequencies but in general higher frequencies have a shorter skin depth. Briefly explain why some transparent materials appear colored while others are colorless.

If light can pass through the material it will be transparent. Beyond that the intensity of light gets attenuated. We will repeat what was said earlier.

Related Threads on Why some things are transparent while others not. This is very difficult takes the better part of. Some are some are not.

Using a medium of high refractive index it can be shown that the most opaque colors even lead white appear transparent. Materials which do not allow the transmission of any light wave frequencies are called opaque. Find out more Transparent and opaque objects.

The answer has to do with the different energy levels that electrons in an atom can have. The Ancient Romans were the first people to make transparent glass. Not all glass is transparent sometimes it is translucent or glows or may distort the image on the other end.

Free electrons can move very quickly and so when theyre hit by light they can move to exactly cancel out the fields. Why are wet materials transparent. Why some polymers and molecular crystals are transparent and others are not.

Light rays can penetrate opaque materials to some depth. If the energy only. These are called translucent substances.

Amorphous plastics are transparent to orientates the polymer molecules in the plane of the filmCrystalline. Replies 8 Views 8K. Such substances may have a chemical composition which includes what are referred.

If you observe the structure of any transparent object you will see that matters are uniformly distributed. Some materials have larger band gaps than others. I just saw a video on youtube from the guys at nothingham university sixty symbols where they explained that some materials are transparent due to the energy gap between the excited states of the electrons in the material.

If some of the light is absorbed some of the wavelengths the material will be colours. Opaque materials such as wood and metals allow no light to pass through. Solid silicon dioxide sand in contrast has obvious grain boundaries so it is not transparent.

Why can we shield some forces but not others. Replies 13 Views 5K. Most of the effects can be explained in terms of dielectrics or conductors.

This is the best answer based on feedback and ratings. That should leave plenty of space for light to pass through without hitting any of these particles.

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