The minimum energy needed to produce a positron is
A) 3 MeV
B) 2 MeV
C) 1 MeV
D) 4 MeV
E) 0.51 MeV

Name: The minimum energy needed to produce a positron is A) 3 MeV B) 2 MeV C) 1 MeV D) 4 MeV E) 0.51 MeV
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Question

Quizplus · Accepted Answer

The minimum energy needed to produce a positron (or any particle-antiparticle pair) is given by their combined rest mass energy, which is 2(0.511 MeV) = 1.022 MeV. Therefore, the minimum energy needed to produce a positron is 0.511 MeV.

The Minimum Energy Needed to Produce a Positron Is