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Questions and Answers
Which particle has the same mass as an electron and a positive charge of +1e?
Which particle has the same mass as an electron and a positive charge of +1e?
- Photon
- Positron (correct)
- Neutron
- Proton
What happens when a positron collides with an electron at low energies?
What happens when a positron collides with an electron at low energies?
- Photon emission
- Annihilation (correct)
- Pair production
- Nuclear fusion
What did Paul Dirac's 1928 paper propose?
What did Paul Dirac's 1928 paper propose?
- Existence of neutrons
- Existence of protons
- Existence of photons
- Existence of positrons (correct)
Which equation unifies quantum mechanics, special relativity, and electron spin?
Which equation unifies quantum mechanics, special relativity, and electron spin?
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How can positrons be created?
How can positrons be created?
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