2. The interface y=0 between two media has surface current density of –3ax + 8a, (A/m). If “medium 1 (y > 0)' is non-magnetic with magnetic field intensity H1 = -4ax + 3ay – 2a, A/m. Find magnetization M, and magnetic flux density B2 in ‘medium 2 (y = 0)’ having permeability of 4 H/m. Also calculate angles (with respect to the normal to the interface) associated with magnetic fields Hy and H2 in ‘medium 1 and medium 2' respectively if surface current density is zero.