B2) please no hand writing solution for other wise down vote)

The figure shows the energy levels for a four level laser. 1 25 .47 eV a. Which level would ideally have the highest 2 -28.60 eV occupancy? (5 points) 2 3 -40.00 eV b. What pumping energy must be given to each atom in the laser cavity? (5 points) 4 -44.70 eV 0. 707 ev