Why are non physists believing that fotons are masseless when tests have shown their mass limit?

Question

Photon experiment of of its intrinsic mass limit.?

My calculation of the photon mass limit came out to be 7.372503276 x10^-51 kilograms. The Experiment indicated half of that and Im not sure who is exACTLY RIGHT?

Isnt the condition to define mass is that it must be able to sustain motion. Hence if some does not move it is not considered to be a mass. But a massless entity.?

Answer 1

BECAUSE THEY ARE NOT PHYSICISTS

Answer 2

Why do people who can't even spell ask questions they wouldn't understand the answer to?
Photons are theoretical. Presently, there are no valid explanations for what light is or how it propogates. It is undoubtedly affected by gravity as evidenced by black holes formed by collapsing stellar mass. The gravitational force is so great light doesn't escape. Also, light bends around the earth and other massive objects. Present theories do not consider the possibility that the light isn't actually moving in the first place. Viewed this way, the relationship between mass and light, or gravity and radiant pressure takes on a whole new meaning. As to why "non-physicists" believe what they do, the only way to know is to ask non-physicists. Why do you believe what you believe, because someone told you, or from direct experimentation?

Answer 3

Photons are massless. Otherwise they are not photons by definition, but rather some other particle.

Photons HAVE to be massles in the frameworks of both quantum theory AND relativity.

Photons have energy, which has an equivalent mass. (i.e. you can turn a photon of the right energy INTO a particle with a specific energy (E = hv) in certain processes.

To my knowledge there are no experiments or theories supporting massive photons.


-T

-T

Answer 4

I believe the experiments have shown that IF a photon (which is not spelled foton) had mass, it could not be larger than a certain amount. In other words, all they have done is rule out any mass over a certain amount. They have not ruled out zero as a possible rest mass for photons.

Answer 5

You have to differentiate between relativistic mass, which is velocity dependent and is another way of describing the energy of a particle, and the so-called 'rest mass'. Check the link below.

BTW: it's spelled 'photon'

Answer 6

Tests have shown photons have momentum but that does not indicate rest mass.

Answer 7

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Answer 8

They have mass, but no rest mass.
E = hf = mc2 so m = hf/c2.

Answer 9

Ask your teacher