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Originally Posted by HIGGSBOSONS Hello,
It Is Known Phenomena That When Ever Photon Or Light Passes Through Some Medium Loses It Constant Speed And Slows Down But As It Leaves The Medium It Regain Its Speed How It Is Possible. |
The photon is pure energy, simply massless. Therefore, it doesn't hold the rules of matter like momentum, speed addition (like when you run inside a train you have both your speed and the train's speed, that doesn't happen with mr.photon)... The photon's energy determines that it goes at 300,000km/s for vacuum independently of the type of light it is (in the electromagnetic spectrum). There are no vacuums, therefore the speed of the photon changes in relation to the medium it is at. When it goes from a smaller to a higher speed due to medium change, it is the facility that it has; it doesn't accelerate, it's just that it always have the same energy but in some mediums there is more density of particles therefore there is more resistance to the energy, but the energy keeps equal. And when it goes into a less dense medium, the energy simply ahs less resistance, but it is the same value of energy in the photon.
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Originally Posted by HIGGSBOSONS I Have Another Question Which Is About Seeing Things. Teachers Tell Student That We See Things When Light Or Photon Reflect From That Object And Enter In Our Eyes. I Want Ask When Photon Enter Our Eyes It Give The Image Of Object But After That Where That Photon Gone.
As Dleviwing Mention That Photon Is Not Real Particles. They Only Observes As Energy Packets Or Photons When They Are Absorsed Or Emitted But I Read In The Book "facts And Mysteries Of Particle Physics" That According To Plancks Only Light Emitted In The Form Of Photons But Acorrding To Einstein Not Only Emitted Light Is Observed As Photons , Whole Light Is Propagates Through Space Or Medium In The Form Of Photons. |
The photons are absorbed by our eyes and end up crashing with the nucleus of the atoms in our eyes, and as Feynman discovered ('The Strange Theory of Light and Matter'), light destroys when it enters in contact with matter.