An Electron and a Positron,each Having Kinetic Energy 1

question 20

Multiple Choice

An electron and a positron,each having kinetic energy 1.843 GeV, annihilate, producing a proton and antiproton pair ( M = 938.3 MeV/c² ) . What is the kinetic energy of the antiproton produced in this way?

• A) 0.938 GeV
• B) 0.905 GeV
• C) 1.586 GeV
• D) 1.843 GeV

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Definitions:

Covalent Bonds

Chemical bonds formed by the sharing of electron pairs between atoms, contributing to the stability of molecules.

Molecular Oxygen

A diatomic molecule \(\text{O}_2\) that is essential for respiration in aerobic organisms and acts as the final electron acceptor in cellular respiration.

Electrons

Subatomic particles with a negative charge that orbit the nucleus of an atom.

Positive Charge

An electrical charge with more protons than electrons, resulting in a net surplus of positive electric charge.