Chapter 44, Problem 44.57PP

To determine

The energy of each photon produced by positron-electron annihilation from the following:

1. (a) $\frac{1}{2}{m}_e{v}^2$.
2. (b) $m_e{v}^2$.
3. (c) $\frac{1}{2}{m}_e{c}^2$.
4. (d) $m_e{c}^2$.