If your in a totally sealed room....

I`m led to believe that the light is absorbed.

Have you been on google boab. :shifty:

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Originally Posted by JPaul

Oh FFS

Right

Light is either a particle or a wave (energy), it is known as the duality of light.

If it is a particle and the room is perfectly sealed then it cannot leave the room. Remember we are discussing a hypothetical here, where the room is perfectly sealed.

If it is a wave then it bumps into a physical object, most of the energy is absorbed by the particles it hits, we see what is reflected. So something red absorbs all of the energy except the red. Which is then reflected away and absorbed elsewhere.

The room becomes dark, but all of the light is still there, either as particles or as energy.

Which part of that is hard to understand.

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i must retreat due to lack of knowledge.
all i can say is guessing stuff which is; nothing lasts forever - aka...
i believe in the the "autofade theory" - mortality of all things
light has a life span as does sound - in relation to your theory even if the light particle is "absorbed elsewhere"/last sentence) it means that all things created last forever.........ok they get transformed
but
does this also apply to the "glint" in the eye of a good, happy person or it too gets "becomes dark, but all of the light is still there, either as particles or as energy."?

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Originally Posted by enoughfakefiles

I`m led to believe that the light is absorbed.

Have you been on google boab. :shifty:

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I have now.:) Prior to that it was guesswork.

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Photons exhibit the behaviors of both particles and waves. Only the wave behaviors are observable. In your example, the particle behavior of a photon is focus of your queston. As soon as a photon is reflected (off the inside side of a box), it becomes an electron. Electrons are invisible. Once the photon source is removed, the life cycle of the remaining photons lasts only until they are first reflected. As a practical matter, since light (or a photon) travels at a speed of 299,792,458 m/s, all the photons would be long gone before the box was opened.

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Same principle as a room.:)

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Originally Posted by bigboab

I have now.:) Prior to that it was guesswork.

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Photons exhibit the behaviors of both particles and waves. Only the wave behaviors are observable. In your example, the particle behavior of a photon is focus of your queston. As soon as a photon is reflected (off the inside side of a box), it becomes an electron. Electrons are invisible. Once the photon source is removed, the life cycle of the remaining photons lasts only until they are first reflected. As a practical matter, since light (or a photon) travels at a speed of 299,792,458 m/s, all the photons would be long gone before the box was opened.

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Same principle as a room.:)

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Exactly, the mass or the energy stays within the perfectly sealed room.

The photons are gone, the room is dark, but the light is still there, either as mass or energy. The reflection is only the energy which was not absorbed.

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Originally Posted by JPaul

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Originally Posted by bigboab

I have now.:) Prior to that it was guesswork.


Same principle as a room.:)

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Exactly, the mass or the energy stays within the perfectly sealed room.

The photons are gone, the room is dark, but the light is still there, either as mass or energy. The reflection is only the energy which was not absorbed.

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The question was what happens to the light. As seen above it is eventually all absorbed.

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Originally Posted by bigboab

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Originally Posted by JPaul

Exactly, the mass or the energy stays within the perfectly sealed room.

The photons are gone, the room is dark, but the light is still there, either as mass or energy. The reflection is only the energy which was not absorbed.

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The question was what happens to the light. As seen above it is eventually all absorbed.

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I think you will find the question was ".... where does the light go.???"

As you say it is absorbed, therefore it is all still inside the room. Like I said.

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Originally Posted by JPaul

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Originally Posted by bigboab

The question was what happens to the light. As seen above it is eventually all absorbed.

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I think you will find the question was ".... where does the light go.???"

As you say it is absorbed, therefore it is all still inside the room. Like I said.

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Read the statement it ceases to be light, it is converted to electrons therefore it is not light anymore. The light is converted to electrons when it bounces of the walls.

Last try.

A perfectly sealed room is a closed system. Call it a universe if you will, that may make it simpler.

Nothing can leave a closed system, it can only change form between energy and matter.

The light which is originaly energy or matter, becomes energy or matter. It changes form but it is still there.

Therefore it does not go anywhere, but stays in the room. Which is the answer to the question posed.

TTFN

If you fart in the room, does it smell forever?

But what happens if you light the fart, do you get light?

or fart?

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Originally Posted by j2k4

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Originally Posted by JPaul

Exactly, the mass or the energy stays within the perfectly sealed room.

The photons are gone, the room is dark, but the light is still there, either as mass or energy. The reflection is only the energy which was not absorbed.

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In other words, it changes form.

Nonetheless, very nicely done, my good man.

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Not being a Physicist I will have to agree to disagree on this one. Their are variable missing in this argument. How long is the light left on. How long after it is switched off do you measure the contents of the room, if it was possible to do so. If the light has been left off for a while then it will have dissipated to the original state of the room. Ergo it no longer exists.

If the light is left on too long them there is every likelyhood that the room would eventually explode.

I will leave it at that until someone with the appropriate qualifications comes along and shows me why I am wrong, if so.:)