Consider a plane boundary (y = 0) between air (region 1, μr1 = 1) and iron (region 2, μr2 = 5000)
a) Assume B1 = ax2 - ay10(mT), find B2 and the angle that B2 makes with the interface.
b) Assume B2 = ax10 +ay2(mT), find B1 and the angle that B1 makes with the normal to the interface.