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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