The Rest Energies of Three Subatomic Particles Are: Particle X

question 16

Multiple Choice

The rest energies of three subatomic particles are: Particle X: 107 MeV; Particle Y: 140 MeV; Particle Z: 0.51 MeV.
Which one of the following statements is necessarily true concerning these three particles?

• A)Particle Z, at rest, could decay into particle X and give off electromagnetic radiation.
• B)Particle X, at rest, could decay into particle Y and give off electromagnetic radiation.
• C)Particle X, at rest, could decay into particles Y and Z and give off electromagnetic radiation.
• D)Particle Y, at rest, could decay into particles X and Z and give off electromagnetic radiation.
• E)Particle Z, at rest, could decay into particles X and Y and give off electromagnetic radiation.

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