Solved

In Order to Produce an Electron and a Positron, Two $\gt$

Question 14

Multiple Choice

In order to produce an electron and a positron, two photons must have a combined energy of:

A) E $\gt$ 2m_ec²
B) E $\gt$ m_ec²
C) E $\gt$ 1/2m_ec²
D) E = m_ec²
E) This cannot happen.

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