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The MeV means million electron volts. It's a measure of the energy the energy in the photon, which is a quantum (or specific quantity) of electromagnetic energy. This 1 megaelectron volt = 1.60217646 × 10-13 joules of energy.
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∙ 16y ago
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Does a photon have electrons?
No. A photon is a particle of light. It is massless.
Is photon time travelling?
No, a photon is not time travelling
Is there any free charge on photon?
No. Otherwise it wouldn't be a photon.
When photon disappear in producing an electron and a positron is the energy of photon equivalent to that of the particles produced?
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How many 60 watt light bulbs can be powered by 1000 MeV?
None at all.
Find the energy of a photon whose frequency is 5x10 12 Hz?
what is the energy of a photon that has a frequency of 5.0x1014 Hz?
How many hydrogens do you have to fuse together to make one helium?
None. Hydrogen and Helium are base elements.Helium is helium.Chemically yes, but with Nuclear Physics in stars:H + H --> D + e+ + v + 0.42 MeV, H + H --> D + e+ + v + 0.42 MeV, D + D --> He3 + n + 3.27 MeV (50%)H + H --> D + e+ + v + 0.42 MeV, H + H --> D + e+ + v + 0.42 MeV, D + D --> He3 + H + 4.03 MeV (50%)H + H --> D + e+ + v + 0.42 MeV, H + D --> He3 + gamma photon + 5.49 MeV, H + H --> D + e+ + v + 0.42 MeV, H + D --> He3 + gamma photon + 5.49 MeV, He3 + He3 --> He + H + H + 12.86 MeV (100%)H + D --> He3 + gamma photon + 5.49 MeV (100%)D + D --> He3 + n + 3.27 MeV (50%)D + D --> He3 + H + 4.03 MeV (50%)D + T --> He + n + 17.59 MeV (100%)T + T --> He + n + n + 11.33 MeV (100%)Four or two, depending on the kind of hydrogen isotope you are burning. As you can see in the equations above burning four ordinary atoms of hydrogen to ordinary helium is a complicated and slow process compared to burning two atoms of various isotopes of hydrogen, however a star has such tiny quantities of deuterium and tritium that depending on them for fusion helps little.
Who is bigger photon electron neutron proton?
The neutron is the largest of the particles mentioned. Compared to the proton, it has an additional weight of 1.293 MeV.
Why you need 1.022 Mev in pair?
Pair production can only occur if the energy of the photon is bigger than the rest mass (E0 = m0*c^2) of electron and positron, because this is the energy needed to create these particle (conservation of energy). Excess energy will be kinetic energy of the electron and positron. Rest mass of electron and positron is 0.511 MeV each, so 1.022 MeV in total.
What does the MV in MV photon mean?
The MV in MV photon means megavolt
What fuses together to form helium?
Two hydrogen atoms fuse together to form one helium atom. During this process, tremendous amounts of energy are released, which is the source of energy in stars. This fusion reaction is known as nuclear fusion.
Does a photon differ from its inertial particle?
It isn't clear what you mean by "its" inertial particle. There is no inertial particle associated with the photon.
What is MeV?
One MeV is one megaelectron volts or one million electron volts, and the MeV is a measure of energy. It is equal to 1.60217646 × 10-13 joules.
If an electron and photon both have energy of 5 mega electron volt which will cause pair production?
pair production only occurs with photons. The necessary condition is that the energy of the photon is greater than that of the two particles that are going to be produced. With 5 mega electron volts as an energy your photon would still not have enough juice as the two smallest particles that can be build are electron and its anti patricle the positron. Both have 511 MeV. You are looking at a trickquestion as neither can.
Which two particles in an atom about the same mass?
Proton and NeutronOK, in very very round figures, but the neutron actually is more massive.In the first approximation, the neutron's mass about as much as a proton plus one electron or (P)938.235 MeV + (e)0.51098 MeV = 938.74598 MeV.In the second approximation, the energy of the neutrino, photon, and electron velocities ejected in free neutron beta decay would be added, but I can't find that in my references right now so I'll skip the math.There are probably also third approximation terms to account for, if not more.As measured, the neutron's mass is 939.529 MeV.
What is the kinetic energy of the reaction products helium nucleus plus photon?
When nuclei of deuterium and tritium (one of each) fuse together tp produce a helium nucleus and a free neutron, about 17.5 Mev (million electron volts) is released. This is very small quantity per nucleus (1 Mev = 1.6 x 10-13 Joules) but of course there are a large number occurring in a second. A fission of a U235 nucleus produces 200 Mev, but as hydrogen is much lighter than uranium, the energy released per unit mass is greater for fusion of hydrogen isotopes.
Which two particles in an atom have about same mass?
Proton and NeutronOK, in very very round figures, but the neutron actually is more massive.In the first approximation, the neutron's mass about as much as a proton plus one electron or (P)938.235 MeV + (e)0.51098 MeV = 938.74598 MeV.In the second approximation, the energy of the neutrino, photon, and electron velocities ejected in free neutron beta decay would be added, but I can't find that in my references right now so I'll skip the math.There are probably also third approximation terms to account for, if not more.As measured, the neutron's mass is 939.529 MeV.
