Linked Questions

-1
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1answer
1k views

Why some materials pass light and others do not? [duplicate]

And what property is needed to own for this? I can`t find this information
2
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0answers
1k views

Why do particular materials allow particular light waves to pass through them? [duplicate]

To be honest, I really don't understand this at all. If we take cardboard for example, obviously gamma rays can penetrate cardboard because the light has such a high energy, and obviously radio waves ...
0
votes
1answer
834 views

Why can I see through a window but not a wall? [duplicate]

What is the difference between a window and a wall that makes a wall opaque but a window transparent, in terms of the molecules that make them up?
0
votes
1answer
608 views

light is allowed to pass through transparent objects? [duplicate]

light passes through transparent objects like water and glass ,where in case of glass the molecules are more tightly packed or concentrated then to it allows light to pass, Why?(yet reflection occurs ...
0
votes
1answer
398 views

Opaque and transparent objects [duplicate]

What is that makes some objects transparent while some are opaque objects.? While considering the atomic theory of matter every thing is made of atoms. Glass as well as wood. I was recently ...
2
votes
1answer
137 views

Why is glass really transparent? [duplicate]

Glass is an amorphous polymorph of silicon dioxide, melted and quenched so that grain boundaries grow uniformly and are small with respect to visible light. Its an oxide not a metal and has a large ...
1
vote
0answers
58 views

How can we see through the matter like glass [duplicate]

I have a very peculiar question. We have some categories of substances like transparent, opaque, translucent. My question is when it comes to transparent objects like glass which is solid, how can we ...
1
vote
0answers
50 views

Is my window's semi-transparency a consequence of elementary quantum mechanics? [duplicate]

Studying mathematical concepts of quantum mechanics, I have recently become familiar with the classical model of one-dimensional particle being scattered by a potential barrier. As a mathematician, I ...
0
votes
0answers
47 views

What are the factors affecting transparency and color of a substance [duplicate]

What is the reason behind visual properties like color and transparency of different substances? I have always heard that the structure of the substance is responsible for these properties. I always ...
0
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0answers
28 views

How does light pass through any glass? [duplicate]

This might be a very stupid question for Science students, but I had this doubt always, since childhood. I still don't understand even when I'm adult because I didn't read science in detail. When I ...
39
votes
4answers
10k views

Why can I see a diamond?

So a diamond has a energy band gap of $\approx 5$eV. If that is too much for visible light $\approx 1.6$eV to be absorbed and then it travels straight through a diamond. Although, I still see a ...
19
votes
7answers
7k views

Why is air invisible?

I think that something is invisible if it's isolated particles are smaller than the wavelength of visible light. Is this correct? Why is air invisible? What about other gases and fumes which are ...
16
votes
1answer
2k views

Why is not everything transparent? [duplicate]

There is a related question on this site here: Why glass is transparent? Which explains that glass is transparent because the atoms in glass have very large energy differences between energy levels ...
2
votes
1answer
2k views

How radio waves penetrate through buildings?

For example how radio signals of a base transceiver station (BTS) penetrate through buildings?
4
votes
2answers
2k views

Propagation of light in transparent media: absorption and reemission or scattering?

In the two Phys.SE questions What is the mechanism behind the slowdown of light/photons in a transparent medium? and Why glass is transparent? transparent media were discussed. But I'd like to clarify ...

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