Positron is an anti-particle of:
Correct answer: A. An electron
- A. An electron
- B. A neutron
- C. A psi-meson
- D. None of the above
Explanation
The positron is the antiparticle of the electron. Both the electron and the positron have the same mass but opposite electric charge. The term "antiparticle" refers to particles that have the same mass as their corresponding particles but opposite properties such as electric charge, baryon number, and lepton number.
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About Dawn of Modern Physics
Classical physics cannot explain blackbody radiation and related observations, leading to Planck’s quantum theory, in which energy is emitted or absorbed in discrete packets. Photons provide the particle model of light, with energy and momentum linked to frequency and wavelength, including the photoelectric effect and its threshold frequency.
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