Light

[hhsting]

I read that light is form of electromagnetic wave meaning at any given time it propagates thru space it is either electric field or magnetic field.

So here is the question if one places light thru hole and on other side of hole is dark side and their is a big magnet under where the light enters other side where its dark then does it not bend or deflect some of the light? What is going on? Anyone know?

It would only make sense since light is made of electric field or magnetic field at any given time and when their is magnetic field from light and their is another magnetic field thru magnet it would either deflect or bend light that is magnetic field part.

 

[LarryFine]

What's the mass of a photon?

 

[suemarkp]

This link gives a decent explanation of why light (photons) are not affected by magnetic fields. Gravity bends light, but not magnetic fields. Light is also strange in that it exhibits properties of both waves and particles.

Does a magnet bend light

 

[GoldDigger]

Although we are used to the idea that magnets attract and repel each other, this is not the result of one magnetic field acting on another magnetic field. The magnetic field in some cases causes a force on the object that is generating the other magnetic field.
In the case of a photon, there is no actual moving electric charge involved to be acted on by an external magnetic field, but instead a time varying electric field which is creating the photon's magnetic field.

 

[romex jockey]

This link gives a decent explanation of why light (photons) are not affected by magnetic fields. Gravity bends light, but not magnetic fields. Light is also strange in that it exhibits properties of both waves and particles.

Does a magnet bend light

one good link deserves another>

Gravitational deflection of light « Einstein-Online

www.einstein-online.info

~RJ~

 

[wwhitney]

In the case of a photon, there is no actual moving electric charge involved to be acted on by an external magnetic field, but instead a time varying electric field which is creating the photon's magnetic field.

OK, so very basic question: if a photon travels close to a moving electron, does the photon's traveling magnetic field interact with the electron and cause a force on it?

Cheers, Wayne

 

[Mr. Serious]

When a photon interacts with an electron, the photon's energy is changed or it can be completely absorbed. Simultaneously, the electron's energy is also changed. Photoelectric effect and other related effects. It's really the only way to sense a photon at all, the way we see. To detect a photon is to change or destroy the photon.

So, yes, the photon's magnetic and electric fields interact with electrons. But, to give a detailed explanation of exactly how is beyond my capability.