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No. It is basic to electromagnetic theory that the rest mass is zero and the velocity in vacuum is "c". The concept of rest mass blows up when an object approaches the speed of light. This indicates that there is something wrong with Einstein's electromagnetic Theory. First it is not clear that anything in the universe is at "rest". I suspect light has a rest mass dependent on its wave length,2piRcm=nh thus m=nh/c2pi R. For a radius of 50 picometers light would weigh 7.07E-33 kg. An electron weighs .905E-30 kg or 128 times the weight of the 50 pico meter light..
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What type of mass is light?
Light 'particles' (photons) have no rest mass.
Why does heat and light doesn't have mass?
No rest mass - because they're energy.
Why photon has rest mass zero?
That's related to the fact that it moves at the speed of light. If you look at the formula for mass increase as a function of speed, it should be obvious that the mass of anything that has a non-zero (i.e., positive) rest mass would approach infinity as the object approaches the speed of light - meaning that the speed of light itself can never be reached, since that would give the object an infinite mass (and require an infinite energy). The only way an object can move at the speed of light is for it to have a rest mass zero. In a way, this is hypothetical, since particles such as the photon or graviton, that move at the speed of light, can only move at the speed of light.
Does light have weight?
If light is made of photons and photons have mass then you would assume that light has weight in a gravitational field. In fact light running into an object imparts momentum to it. However photons have no rest mass. If they did , objects that were exposed to sunlight and absorbed it would get heavier as time goes on, they don't. So light has no mass and hence no weight.
What will be the total energy of a particle of rest mass m and momentum p moving at velocity close to light?
something very sciencey
What type of mass is light?
Light 'particles' (photons) have no rest mass.
What should be the mass of anything at the speed of light?
Anything that has any mass when it's at rest would have infinite mass at the speed of light.
Why does heat and light doesn't have mass?
No rest mass - because they're energy.
When describing photons what is rest mass?
When describing photons specifically rest mass is zero. The "rest mass" is the hypothetical mass a photon would have if it weren't moving at the speed of light, which as just stated, is zero. Nothing with a non-zero rest mass can travel at the speed of light in a vacuum, because it would require a literally infinite amount of energy to accelerate to that speed. (Neutrinos have a very small, but non-zero, rest mass, and therefore travel at most at slightly under the speed of light.)
Why photons are massless?
This refers to their so-called "rest mass", and it is related to the fact that they move at the speed of light. Any object with a non-zero rest mass couldn't move at the speed of light - if it did, its actual mass (mass, considering its movement) would be infinite.
Why gamma rays travel at the speed of light?
Because they are made up of photons, which have no rest mass. Having no rest mass, they are the only particle that is capable of traveling at the speed of light per the lorentz transformation.
When mass is decreased?
An object travelling at a velocity close to the speed of light had a higher mass than when at rest.
What do you call a particle of light with zero mass which carries a quantum of energy?
I call it a 'photon'.By the way, the photon has zero rest mass, but when it travels at the speed of light ...which it always does ... it has some mass.
Can any object move with the velocity of light?
No object that has mass when it's just sitting there on the table can move at the speed of light. Photons have zero "rest mass".
Why photon has rest mass zero?
That's related to the fact that it moves at the speed of light. If you look at the formula for mass increase as a function of speed, it should be obvious that the mass of anything that has a non-zero (i.e., positive) rest mass would approach infinity as the object approaches the speed of light - meaning that the speed of light itself can never be reached, since that would give the object an infinite mass (and require an infinite energy). The only way an object can move at the speed of light is for it to have a rest mass zero. In a way, this is hypothetical, since particles such as the photon or graviton, that move at the speed of light, can only move at the speed of light.
What is the mass of a 100 kg object while traveling 90 percent the speed of light?
Mass = (Rest mass) / sqrt( 1 - v2/c2 )V = 0.9 cv2/c2 = 0.811 - v2/c2 = 0.19sqrt( 0.19 ) = 0.4359Mass = (rest mass) / 0.4359 = 2.294 x (rest mass)For a rest-mass of 100 kg, that's 229.4 kg at 0.9 c .
What is the difference between photons and electrons?
Photons have no charge, no rest mass and travel at the speed of light throuh a vacuum. Electrons have a charge of -1, have rest mass and are part of atoms.
