In pair-production, a photon is converted into a matter anti-matter pair. Some energy of the photon is converted into rest mass energies of the matter and anti-matter, the remaining energy is converted into the kinetic energy of the particles. The rest mass energy of an electron is 0.511MeV. The rest mass energy of a positron is also 0.511MeV. The minimum energy that a photon should have to create a single electron-positron pair is

1.022MeV photon can produce electron-positron pairs at rest.
The minimum energy that a photon must have to create two electron-positron pair is

The given photon only have 2MeV of energy, therefore the given photon can produce a maximum of 1 pair of electron-positron pair.
what is the maximum number of pair electron-positron a 2 MeV photon can produce
An electron-positron pair is produced by a 2.85 MeV photon. What is the kinetic energy of the positron if the kinetic energy of the electron is 1.219 MeV? Use the following Joules-to-electron-Volts conversion 1eV = 1.602 × 10-19 J. The rest mass of an electron is 9.11 × 10-31 kg Please answer in MeV
An electron-positron pair is produced by a 2.30 MeV photon. What is the kinetic energy of the positron if the kinetic energy of the electron is 0.958 MeV? Use the following Joules-to-electron-Volts conversion 1eV = 1.602 × 10-19 J. The rest mass of an electron is 9.11 × 10-31 kg
3. A photon creates a electron-positron pair. The kinetic energy of the electron is 2.20 times that one of the positron. What is the kinetic energy of the electron if the energy of the photon is 2.80 times the rest mass energy of the electron? (The rest mass of a electron is 9.11 x10-31 kg.) O 0.128 MeV O 0.819 MeV O 0.281 MeV O 0.409 MeV O 0.186 MeV
How much total kinetic energy will an electron-positron pair have if produced by a 3.64 MeV photon? In MeV
An electron-positron pair
(positron is electron’s antiparticle, it has the same mass as
electron, but opposite charge) can be produced what two photon are
collided. Two photons of frequency ω are collided head-on. What
will be the electron’s momentum? Electron’s rest mass is me
Problem 4. Electron-positron production An electron-positron pair (positron is electron's antiparticle, it has the same mass as electron, but opposite charge) can be produced what two photon are collided. Two photons of frequency w are collided...
Problem 4. Electron-positron production An electron-positron pair (positron is electron’s antiparticle, it has the same mass as electron, but opposite charge) can be produced what two photon are collided. Two photons of frequency ω are collided head-on. What will be the electron’s momentum? Electron’s rest mass is me.
the annihilation of an electron and a positron, each with negligible kinetic energy, results in the production of two photons with the same energy. (a) Determine the energy of each photon in MeV. MeV (b) Determine the wavelength of each photon. m
Part A How much total kinetic energy will an electron-positron pair have if produced by a 3.69 MeV photon? Express your answer using three significant figures.
An proton-antiproton pair is produced by a 2.20 × 10 3 MeV photon. What is the kinetic energy of the antiproton if the kinetic energy of the proton is 161.90 MeV? Use the following Joules-to-electron-Volts conversion 1eV = 1.602 × 10-19 J. The rest mass of a proton is 1.67 × 10 − 27 kg.
An proton-antiproton pair is produced by a 1.95 × 10 3 MeV photon. What is the kinetic energy of the antiproton if the kinetic energy of the proton is 24.60 MeV? Use the following Joules-to-electron-Volts conversion 1eV = 1.602 × 10-19 J. The rest mass of a proton is 1.67 × 10 − 27 kg.