Sir i think, There is some missing element, because if we apply light continously on paper material, at some time elecron reaches at its maximum energy states, and it have to behave like fluorescent objects,and also this theory not follow energy conservation, so i thinks there's something missing
Hai, thankyou for the comment and opening up the discussion. The phenomenon of electron transition does not end there. Please see the video given below to fill the missing links. ruclips.net/video/5tXKQhp_4Ig/видео.html
I'm watching this vid to understand something our doctor said about transparency of cornea of eye. He said that the distance between the arranged fibers is less than wavelength of light. What can that mean in the eye of physics?
In the language of physics, an object becomes transparent when there is no mechanism in the material to absorb/scatter the photons in the visible light. Cornea becomes transparent as it is made up of molecules which cannot absorb/scatter visible light. The energy levels of electrons in such molecules are much higher than available in the visible light. If a fibrous material, capable of absorbing photons are distributed densely and closely in the cornea, that can affect passing of light and transparency. The Doctor could have been mentioning this aspect.
when the frogs catch all the flys they will be on the higher levels. does this mean the paper is transparent after all the frogs are on the high level?
Good thinking to have that question. To answer this, let's go to next level of discussion. The electrons which gets excited and go to next level, are not stable there and try to come to stable level by releasing energy. This release of energy is also in the form of photons, which we see as the light produced by the object (paper). When we receive that light from the object we see the color of that object. A white paper produce (scatter) photons of all visible wavelength, so we see it as white. Electrons in a yellow paper, after absorbing light, emit photons corresponding to the wavelength of yellow color only and so we see that as yellow. This is how objects appear colored. Hope this helps.
@@ScienceforCommonman thanks. that makes sense. Q2. if you use a high intensity beam (lots of flies) to go into a window will each frog grab lots of flies then get enough energy to jump up to the next level? this would make the window look like the paper.
Good question. Whether the electrons absorb photons or not, depends on the energy of individual photons and not on the number of photons. Energy of photons depends on frequency. Electrons in glass cannot absorb photons of the frequency of visible light. But they can absorb photons of higher energy, (in the range of ultraviolet rays). So the window glass is in fact opaque to most of the ultraviolet rays. But the uv rays are not visible for human eyes. So we don't see the glass as opaque. Hope this helps.
If difference in energy level in opeque object is less then transparent object then why soem transparent object behave as conductor and opeque object are insulator.....
Good thinking to have these questions. First, I am answering the second part of the question. Q. How an opaque object can act as an insulator. Ans. An opaque object does not necessarily have free or loose electrons. It just has electrons energy levels corresponding to that of visible light. So, an opaque object can be transparent. Q. Why some transparent objects conduct. Ans. This could be made possible by some methods depending on applications. Providing a narrow band of charge carriers is one way. Reducing the thickness to such a level of atomic size can make an opaque object, look like transparent. Hope this helps..
Good question.The excited electrons are not stable in the higher energy state. They soon jump back to their normal stable state, emitting a photon of similar energy. That is how light is reflected from a material. Will be releasing a video explaining this in June.
The energy gap is too high in the atoms of glass. That corresponds to the energy carried by ultraviolet rays. Visible light has photons of lesser energy. So, visible light passes through glass, while ultra violet rays do not. Most glasses are made up of SiO2. (Silicon Dioxide)
@@ScienceforCommonman but there are many other substances too which are mostly made up of sio2 which are not transparent even though they too have the same atoms Why glass is transparent
Valid question. This is due to the fact that different substances may have different crystal structures (arrangement of atoms in a material). In transparent glasses, there are no grain boundaries, and they are just chains of atoms arranged in no specific order and we call those amorphous. In non transparent materials including the same atoms, light gets scattered in grain boundaries in different directions, due to which they become opaque. Hope this clarifies. Would love to continue the discussion in case more clarification is required.
despite that, there is vastly more empty space between the molecules too, which should have allowed majority of the light to pass through to make almost everything transparent. why does it not happen?
That is an interesting question. The size of atoms are infact very very small. They are around 100 picometers. A sheet of one micrometer thickness may have 10000 layers of atoms stacked up. So, there are sufficient layers of atoms even in the smallest possible thickness... In spite of this, everything becomes transparent when the thickness is too low, of the order of picometers or nanometres...
Thank you for this video it was very informative. My question is this: so are the valances farther apart in glass than in other objects, therefore the electrons don’t absorb the light protons?
Thankyou for the nice words. Yes. The energy gap is relatively high. Infact that the energy gap corresponds to that of UV rays. And hence most glasses absorb Ultraviolet rays.
So does this mean if theres a wall and theres a 3 dimensional creature and theres 2 2 dimensional creatures the 3 dimensional creature can see that wall because its 2 dimensional wall🧐
Disagree with this comment. A photon is a type of boson which has zero rest mass. They possess energy only due to motion. And we know their properties only by studying their interactions with matter. And the observations explained in this video are results of such scientific studies.
Good thinking to have such a question. In glass, visible light cannot be absorbed, because the energy required for electron transition is way above the energy of visible light. X-rays possess higher frequency and so, have higher energy than visible light. So, electrons of an opaque material can be excited. But they carry far more energy than required for electrons of an opaque metal. In fact, x-rays are absorbed by a metal. But whether, an amount of x-ray pointed towards an opaque object (metal, body etc.) gets completely absorbed or not, depends on the thickness through which the rays have to pass through, and the intensity of rays. An x-ray would be absorbed, if it is allowed to pass through a thicker metal. But it may pass through a thin metal. Infact, during medical x-rays, we adjust the intensity such that, it can pass through soft tissues, but will be blocked by bones, and we get shape and continuity of bones. You may please go through the following video also, to understand the concept better. Thankyou. ruclips.net/video/5tXKQhp_4Ig/видео.html
@@ScienceforCommonman Thanks, G8 explanation giving example of adjusting xray frequency to deliberately engage with certain materials and not with others in medical use.
We see the ball is ~ Red, because it absorbs all color's lights and recreated the Red one. That's why we see the objects with their colors. The frequencies which they are not accompany to red color, we say, they were absorbed and the material not able to reemitted them again, which they may will be used to gain the molecules a kinetic energy then to increase their temperature. But you have completely reversed the concepts in your explanation. The frogs will go back to their places and then the flies must be spited. Finally, when reach the surface we will see the flies. But the truth is "we will not see them".
Please note that this video is meant to explain "Why glass is transparent?" and NOT "Why things are colored?". If you are looking for an explanation about "Why things are colored?", please see our own video on that subject, where jumping back of electrons and other aspects are explained in detail. The link for that video is given below. Thankyou. ruclips.net/video/5tXKQhp_4Ig/видео.html
Sir i think, There is some missing element, because if we apply light continously on paper material, at some time elecron reaches at its maximum energy states, and it have to behave like fluorescent objects,and also this theory not follow energy conservation, so i thinks there's something missing
Thank you so much sir. Keep continuing this work. We will keep supporting you.
Glad to see the comment
Sir i think,
There is some missing element, because if we apply light continously on paper material, at some time elecron reaches at its maximum energy states, and it have to behave like fluorescent objects,and also this theory not follow energy conservation, so i thinks there's something missing
Hai, thankyou for the comment and opening up the discussion.
The phenomenon of electron transition does not end there.
Please see the video given below to fill the missing links.
ruclips.net/video/5tXKQhp_4Ig/видео.html
I'm watching this vid to understand something our doctor said about transparency of cornea of eye. He said that the distance between the arranged fibers is less than wavelength of light. What can that mean in the eye of physics?
In the language of physics, an object becomes transparent when there is no mechanism in the material to absorb/scatter the photons in the visible light.
Cornea becomes transparent as it is made up of molecules which cannot absorb/scatter visible light.
The energy levels of electrons in such molecules are much higher than available in the visible light.
If a fibrous material, capable of absorbing photons are distributed densely and closely in the cornea, that can affect passing of light and transparency. The Doctor could have been mentioning this aspect.
ruclips.net/video/5tXKQhp_4Ig/видео.html
Request to watch this video for further understanding on the subject...
Thanks a lot!@@ScienceforCommonman
Informative & Simple explanation.. Thank you sir🥰
Thankyou
@@ScienceforCommonman m
when the frogs catch all the flys they will be on the higher levels.
does this mean the paper is transparent after all the frogs are on the high level?
Good thinking to have that question. To answer this, let's go to next level of discussion. The electrons which gets excited and go to next level, are not stable there and try to come to stable level by releasing energy. This release of energy is also in the form of photons, which we see as the light produced by the object (paper). When we receive that light from the object we see the color of that object. A white paper produce (scatter) photons of all visible wavelength, so we see it as white. Electrons in a yellow paper, after absorbing light, emit photons corresponding to the wavelength of yellow color only and so we see that as yellow. This is how objects appear colored. Hope this helps.
@@ScienceforCommonman thanks. that makes sense.
Q2. if you use a high intensity beam (lots of flies) to go into a window will each frog grab lots of flies then get enough energy to jump up to the next level? this would make the window look like the paper.
Good question. Whether the electrons absorb photons or not, depends on the energy of individual photons and not on the number of photons. Energy of photons depends on frequency. Electrons in glass cannot absorb photons of the frequency of visible light. But they can absorb photons of higher energy, (in the range of ultraviolet rays). So the window glass is in fact opaque to most of the ultraviolet rays. But the uv rays are not visible for human eyes. So we don't see the glass as opaque. Hope this helps.
Hai, we have released a video addressing the doubt raised. Link is given below.
ruclips.net/video/5tXKQhp_4Ig/видео.html
If difference in energy level in opeque object is less then transparent object then why soem transparent object behave as conductor and opeque object are insulator.....
Good thinking to have these questions.
First, I am answering the second part of the question.
Q. How an opaque object can act as an insulator.
Ans. An opaque object does not necessarily have free or loose electrons. It just has electrons energy levels corresponding to that of visible light. So, an opaque object can be transparent.
Q. Why some transparent objects conduct.
Ans. This could be made possible by some methods depending on applications. Providing a narrow band of charge carriers is one way. Reducing the thickness to such a level of atomic size can make an opaque object, look like transparent.
Hope this helps..
Sir what happens to the electrons of the opaque materials when they gain energy from photon do they become charged or what ??
That is an interesting question.
Please see the video given below. Those aspects are explained in this.
ruclips.net/video/5tXKQhp_4Ig/видео.html
One doubt, when electrons already excited and further photons comes, wat will happen to them..? Will pass?
Good question.The excited electrons are not stable in the higher energy state. They soon jump back to their normal stable state, emitting a photon of similar energy. That is how light is reflected from a material.
Will be releasing a video explaining this in June.
Hai, we have released a video, addressing the doubt raised. Link is given below.
ruclips.net/video/5tXKQhp_4Ig/видео.html
Very much informative
Thankyou
Simple explanation... 👌👌
Thankyou
Wonderful Shiju sir.
Glad that you liked it..
WW
WW
Why energy provided by photons is not enough for a glass to absorb it.
What atoms are their in a glass??
The energy gap is too high in the atoms of glass. That corresponds to the energy carried by ultraviolet rays. Visible light has photons of lesser energy. So, visible light passes through glass, while ultra violet rays do not. Most glasses are made up of SiO2. (Silicon Dioxide)
@@ScienceforCommonman but there are many other substances too which are mostly made up of sio2 which are not transparent even though they too have the same atoms
Why glass is transparent
Valid question. This is due to the fact that different substances may have different crystal structures (arrangement of atoms in a material). In transparent glasses, there are no grain boundaries, and they are just chains of atoms arranged in no specific order and we call those amorphous. In non transparent materials including the same atoms, light gets scattered in grain boundaries in different directions, due to which they become opaque. Hope this clarifies. Would love to continue the discussion in case more clarification is required.
@@ScienceforCommonman what are grain boundaries?
Will definitely do a video covering these end to end..
Very well explained👍👏👏👏👏
Thankyou
despite that, there is vastly more empty space between the molecules too, which should have allowed majority of the light to pass through to make almost everything transparent. why does it not happen?
That is an interesting question.
The size of atoms are infact very very small. They are around 100 picometers. A sheet of one micrometer thickness may have 10000 layers of atoms stacked up. So, there are sufficient layers of atoms even in the smallest possible thickness...
In spite of this, everything becomes transparent when the thickness is too low, of the order of picometers or nanometres...
Thank you good sir. me and warsay was wondering about how to be an invisible man!
Glad to see the comment. All the best.
🌹nice
Good
A
Thank you for this video it was very informative. My question is this: so are the valances farther apart in glass than in other objects, therefore the electrons don’t absorb the light protons?
Thankyou for the nice words.
Yes. The energy gap is relatively high. Infact that the energy gap corresponds to that of UV rays. And hence most glasses absorb Ultraviolet rays.
11q1@@ScienceforCommonman qqq1111
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So does this mean if theres a wall and theres a 3 dimensional creature and theres 2 2 dimensional creatures the 3 dimensional creature can see that wall because its 2 dimensional wall🧐
Could not understand how this video is related to dimensions.
Good contents
Thankyou
A photon isn't that small. There's something else going on.
Disagree with this comment. A photon is a type of boson which has zero rest mass. They possess energy only due to motion. And we know their properties only by studying their interactions with matter. And the observations explained in this video are results of such scientific studies.
Good topic and Nicely explained...
Thankyou
THen y x rays & gamma rays pass through opaque material. They should engage with electon and stay there too
Good thinking to have such a question.
In glass, visible light cannot be absorbed, because the energy required for electron transition is way above the energy of visible light.
X-rays possess higher frequency and so, have higher energy than visible light. So, electrons of an opaque material can be excited. But they carry far more energy than required for electrons of an opaque metal. In fact, x-rays are absorbed by a metal. But whether, an amount of x-ray pointed towards an opaque object (metal, body etc.) gets completely absorbed or not, depends on the thickness through which the rays have to pass through, and the intensity of rays. An x-ray would be absorbed, if it is allowed to pass through a thicker metal. But it may pass through a thin metal. Infact, during medical x-rays, we adjust the intensity such that, it can pass through soft tissues, but will be blocked by bones, and we get shape and continuity of bones.
You may please go through the following video also, to understand the concept better. Thankyou.
ruclips.net/video/5tXKQhp_4Ig/видео.html
@@ScienceforCommonman Thanks, G8 explanation giving example of adjusting xray frequency to deliberately engage with certain materials and not with others in medical use.
G8 explanation, esp how we tune Xray frequency in medical applications to selectively engage with different tissues.
We see the ball is ~ Red, because it absorbs all color's lights and recreated the Red one. That's why we see the objects with their colors.
The frequencies which they are not accompany to red color, we say, they were absorbed and the material not able to reemitted them again, which they may will be used to gain the molecules a kinetic energy then to increase their temperature.
But you have completely reversed the concepts in your explanation.
The frogs will go back to their places and then the flies must be spited. Finally, when reach the surface we will see the flies. But the truth is "we will not see them".
Please note that this video is meant to explain "Why glass is transparent?" and NOT "Why things are colored?".
If you are looking for an explanation about "Why things are colored?", please see our own video on that subject, where jumping back of electrons and other aspects are explained in detail. The link for that video is given below. Thankyou.
ruclips.net/video/5tXKQhp_4Ig/видео.html
Sir i think,
There is some missing element, because if we apply light continously on paper material, at some time elecron reaches at its maximum energy states, and it have to behave like fluorescent objects,and also this theory not follow energy conservation, so i thinks there's something missing
🎈❤️🎈❤️🎈❤️🎈❤️🎈
Thankyou
👌👌👌👌🔥🔥🔥
Thankyou
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