Question
according to einstein's mass energy relation
M= m'/root[1-(v^2/c^2)]
Where M is mass of particle when it moves with velocity 'v'
And m' is its initial mass.
When particle moves with velocity of light i.e. When 'v=c' then
M= m'/0 =infinity i.e. Infinite mass
But a photon of light can have velocity of light.
So does this possess infinite mass?!!
M= m'/root[1-(v^2/c^2)]
Where M is mass of particle when it moves with velocity 'v'
And m' is its initial mass.
When particle moves with velocity of light i.e. When 'v=c' then
M= m'/0 =infinity i.e. Infinite mass
But a photon of light can have velocity of light.
So does this possess infinite mass?!!
Answers
no, it has zero rest mass m' so its mass is undefined at any speed.
As you know of course it does have finite energy and momentum.
As you know of course it does have finite energy and momentum.
see Wikipedia:
" .... In empty space, the photon moves at c (the speed of light) and its energy and momentum are related by E = pc, where p is the magnitude of the momentum vector p. This derives from the following relativistic relation, with m = 0:[15]
E^{2}=p^{2} c^{2} + m^{2} c^{4}.
The energy and momentum of a photon depend only on its frequency (ν) or inversely, its wavelength (λ):
E=\hbar\omega=h\nu=\frac{hc}{\lambda}
\boldsymbol{p}=\hbar\boldsymbol{k},
where k is the wave vector (where the wave number k = |k| = 2π/λ), ω = 2πν is the angular frequency, and ħ = h/2π is the reduced Planck constant.[16]
Since p points in the direction of the photon's propagation, the magnitude of the momentum is
p=\hbar k=\frac{h\nu}{c}=\frac{h}{\lambda}. ......"
" .... In empty space, the photon moves at c (the speed of light) and its energy and momentum are related by E = pc, where p is the magnitude of the momentum vector p. This derives from the following relativistic relation, with m = 0:[15]
E^{2}=p^{2} c^{2} + m^{2} c^{4}.
The energy and momentum of a photon depend only on its frequency (ν) or inversely, its wavelength (λ):
E=\hbar\omega=h\nu=\frac{hc}{\lambda}
\boldsymbol{p}=\hbar\boldsymbol{k},
where k is the wave vector (where the wave number k = |k| = 2π/λ), ω = 2πν is the angular frequency, and ħ = h/2π is the reduced Planck constant.[16]
Since p points in the direction of the photon's propagation, the magnitude of the momentum is
p=\hbar k=\frac{h\nu}{c}=\frac{h}{\lambda}. ......"
Related Questions
Einstein (21) was however also publishing papers in physics.
was however also
A.was, however...
Einstein put forward the mass-energy equation E=mc2. Can anybody explain why c is squared(2)?Also de...
Using Einstein's famous mass-energy equivalency formula what information pairs can you create?
A....
Using Einstein's famous mass-energy equivalency formula what information pairs can you create?(3 poi...
Using Einstein's famous mass-energy equivalency formula what information pairs can you create?(3 poi...
Where was Einstein born?
(2 points)
Responses
Berlin, Germany
Berlin, Germany
Zur...
What did Einstein consider more important than knowledge?
(2 points)
Responses
money
m...
What does Einstein’s famous equation say that all matter is?
(1 point)
Responses
concentrated...
do 5 sentenes about Einstein and his obstacles make it look like a 4th grader
When Einstein came up with E = mc^2, (which means Energy = Mass ⨉ the Speed of Light squared) he pro...