Problem_set_08 for 27.03.2015, rom FO 262 1215-1400

Please finish problem 4 from the Problem_set_07.

In addition consider

http://www.uio.no/studier/emner/matnat/fys/FYS4130/v10/exercises/homework8.pdf

The solutions of problem_set_07 1-3 can be found 

folk.uio.no/larissa/nuclphys/fys4130/problem_set_07.pdf