29. The radioactive isotope 2211Na emits γ-rays with energy ε = 1,28 MeV. Determine the power P gamma radiation and energy W, emitted during t = 5 min sodium isotope mass m = 5 g assume that for every act of the collapse of the one emitted γ-photon of this energy.

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)