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This quiz contains 14 questions from a mix of 1 subtopics.
Which particle has a positron as its antiparticle?
proton
electron
neutrino
neutron
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What charge does an antiparticle have compared to its normal particle counterpart?
no charge
the same charge
the opposite charge
double the charge
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Which of the following correctly matches a particle to its antiparticle? Select all that apply.
neutron - Anti-neutron
pion - Proton
electron - Positron
proton - Neutron
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In pair production, what must the minimum photon energy be equal to?
the kinetic energy of the particle and antiparticle
the mass of the particle and antiparticle
twice the rest energy of the particles produced
the frequency of the photon
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In annihilation, what form does the mass-energy of the particle and antiparticle convert into?
kinetic energy
one photon
thermal energy
two photons
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What must be true about the total energy of the photons produced in annihilation?
it must equal the kinetic energy of the particles
it must equal the rest energy
it must equal twice the rest energy
it must equal four times the rest energy
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What is the process where energy is converted into a particle and antiparticle pair called?
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What consists of antiparticles rather than normal particles?
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Give 3 key differences between particles and their corresponding antiparticles.
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Explain the process of electron-positron annihilation.
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What is the minimum energy required for the pair production of an electron-positron pair if the rest energy of an electron is 0.511 MeV?
1.02×10−13 J
8.20×10−14 J
1.64×10−13 J
3.22×10−13 J
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A photon undergoes pair production near an atomic nucleus and creates a proton-antiproton pair. If the rest energy of a proton is 938.257 MeV, what is the minimum energy of the photon in Joules?
1.48×10−10 J
3.00×10−10 J
1.50×10−10 J
2.90×10−10 J
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Calculate the frequency of a photon that can create a neutron-antineutron pair through pair production if the rest energy of a neutron is 939.551 MeV.
1.13×1023 Hz
2.26×1023 Hz
9.00×1022 Hz
4.54×1023 Hz
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An electron and a positron annihilate each other, producing two photons. If the rest energy of the electron is 0.511 MeV, what is the frequency of each photon produced?
1.23×1020 Hz
2.46×1020 Hz
6.15×1019 Hz
1.235×1020 Hz
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