if there is weight of photons ,then why not of light?

Answer 1

Lemme explain this. There are two theories about the composition of light- the Corpuscular theory and the wave theory. The wave theory considers light to be a wave with no mass while the Corpuscular theory considers light to be made of photons. None of them is universally accepted. So you're mixing up the two.
Photons are packets of light and these particles should be further made up of photons which again should have photons in it.
So, cause this process goes on endlessly, therefore light has no weight.

Answer 2

As others have said, the photon has no rest mass, but it does have a relativistic mass, m=E/c^2, where c is the speed of light and E is the photon's energy, which can be computed by Planks equation E = hf where f is the photons frequency and h is Planck's constant, 6E-34 Js. For example, ordinary visible light is around 500 nm, corresponding to a frequency of 6E14 Hz, or an energy of 1E-20 J. Thus the mass of a 500 nm photon is 1.1E-37 kg, or 0.00000000000000000 000000000000000011 gram.

Answer 3

Light's elementary particle is the photon. Photons have an invariant mass of zero. An invariant mass is a measurement or calculation of the mass of an object that is the same for all frames of reference. At all frames of reference, a photon is massless, or has zero invariant mass. Photons make up light. Therefore, light must be massless.

Answer 4

Yes - it has also weight. Looking things more lighter, we can see things heavy. Contrary, looking for heavy things, this and that are light. When light has no weight, it can not reach earth's surface, When a full-glass is covered with a paper and hold upside down, the paper does not fall because of the air-pressure upward (when downward pressure is always there). I am searching wwhether anything without weight in the universe. When it gets into the orbit, it is influenced by weight.

Answer 5

Here's a good article on it. No it does not have mass. Because of it's nature it doesn't interact with the Higgs Fields which is blamed for imparting mass to most weak interacting particles. The concepts and math are pretty wild.

http://math.ucr.edu/home/baez/physics/Relativity/SR/light_mass.html

Answer 6

Because photons don't have any real mass. The 'mass' they talk about is their relativistic equivalent mass. The amount of energy that they have can be equated to mass by E=mc².


Doug

Answer 7

the rest mass of photon is zero.photons gets mass only when they travell

Answer 8

light is an electromagnetic wave.it has particle properties too.

Answer 9

coz it is a imaginary figure