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photons are particles of light, or waves. since they don't interact with the higgs field, they go at the speed of light. if something doesn't interact with the higgs field, it has no mass, and no mass means they go at the speed of light. for a good and cool version of this answer, go see on YouTube: The large hadron rap!
Wiki User
∙ 15y ago
Wiki User
∙ 14y agoThe relation that you're probably thinking of is p=mv. This is only a piece of the larger picture predicted by relativity. At low speeds like those we're used to in classical physics, the aforementioned relation is a perfectly good approximation. However, at speeds close to the speed of light, the fact that it's a mere approximation becomes apparent. For very high speeds, which photons generally travel at, the relativistic energy equation reduces to E=pc. From this, it becomes clear that something need only possess energy and velocity to have momentum.
Alternate answer.
The question is not about having momentum but having mass. Not withstanding Relativity, the photon has mass m= E/c^2 = hf/c^2 = h/cw. This mass is manifest in the gravitational deflection of light.
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Which particle has the least amount of mass?
The 'rest mass' of the photon is zero ... but the photon is never at rest, and it has plenty of mass at the speed of light, at which it is always traveling. so that let's the photon out. Amongst particles that actually have rest mass, but not much of it, the neutrino probably has the least.
A sentence for photon?
A photon is a sub atomic particle is a single enery packet of light As it has no mass it can travel at the speed of light (since it is light) and are created when an electron makes a quantum leap inside an atom.
Why is fire not considered to be matter?
beacuse it doesnt have mass
The carbon 12 atom is assigned a relative mass of exactly?
Exactly 12 atomic mass units, or 12/(Avogadro's Number) = about 1.993 X 10-23 grams.
What is the mass of exactly 150 gumballs?
the mass of 150 gumballs is 214g
What is the mass of moving photon?
the mass of a photon is zero
What is the plot mass of photon?
the photon has got 0 rest mass .and plot mass means? not knowing..
mass of photon?
Photons have no mass.
What is the smallest in mass?
A photon.
What is the mass of one photon?
mass of the proton is 0. Answer 2 But the question asked about photons, not protons. The mass of a photon is also 0, though the mass of a proton is not!
Is it possible to have a particle with zero rest mass but still possessing momentum?
Yes. That's exactly the case with the photon, the particle of electromagnetic energy.
Why is the energy of a photon greater than that of an electron?
It does not. A photon has no rest mass an electron has mass and therefore more energy
What subatomic particles have a mass of 0?
The photon. This refers to the "rest mass"; since the photon has energy, it also has an associated mass. But the "rest mass" or "invariant mass" is zero.
What is the mass of a photon in motion?
A photon is a massless particle, meaning it has no rest mass. Its mass is zero, but it does have energy and momentum.
Which is not the property of photon mass charge energy momentum?
A photon has zero electrical charge.
When can a substance's mass be 0?
Yes, a Photon's mass is theorized to be zero.
What is the mass of gamma in atomic mass units?
If you mean a gamma photon, it is mass-less.
