1. The spins and parities of the ground state, first excited state, and second excited state of 62Sm152 are (0, even), (2, even), and (1, odd). Determine the types of radiation emitted in the y decays between these states.
2. Verify that the parts of the y-decay selection rules relating L to the nuclear spins represent angular momentum conservation requirements. Use the fact that a γ ray from a transition of multipolarity L carries L units of angular momentum.