No. Wireless transmission means electromagnetic waves such as radio wave or microwaves. Electromagnetic radiation does not have mass. I’m not sure what you mean by “is it visible on any spectrum?” Electromagnetic radiation is detectable (which I think what you mean by “visible”) with a detector that is capable of receiving signals in that spectrum. In other words, wifi uses microwaves, so any device that connects via wifi can detect microwaves.
It depends on precisely what you mean by “mass”. Relativity tells us that mass and energy are the same, so in that sense anything with energy has mass in some sense.
Usually, if you use that term, you mean *rest* or *invariant* mass, which is what corresponds to mass in classical physics and is the mass(-energy) an object would have it it were not moving. Light (and therefore radio waves) have zero *rest* mass, but have non-zero mass-energy.
It depends on precisely what you mean by “mass”. Relativity tells us that mass and energy are the same, so in that sense anything with energy has mass in some sense.
Usually, if you use that term, you mean *rest* or *invariant* mass, which is what corresponds to mass in classical physics and is the mass(-energy) an object would have it it were not moving. Light (and therefore radio waves) have zero *rest* mass, but have non-zero mass-energy.
No. Wireless transmission means electromagnetic waves such as radio wave or microwaves. Electromagnetic radiation does not have mass. I’m not sure what you mean by “is it visible on any spectrum?” Electromagnetic radiation is detectable (which I think what you mean by “visible”) with a detector that is capable of receiving signals in that spectrum. In other words, wifi uses microwaves, so any device that connects via wifi can detect microwaves.
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