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What Is the Minimum Combined Energy of the Photons That

Question 41

Multiple Choice

What is the minimum combined energy of the photons that would produce an electron-positron pair? (Note: m_e is the rest mass of an electron.)

A) 2m_ec²
B) m_ec²
C) 1/2m_ec²
D) m_e²c⁴
E) This cannot happen.

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