A right circularly polarized electromagnetic wave of frequency fo = 60 Hz is propagating in the z-direction in the metal potassium, at a very low temperature of a few degrees Kelvin, in the presence of a z-directed static magnetic flux density field Bo. Determine (a) the phase velocity and (b) wavelength of the electromagnetic wave in the metal. Assume that electron density No of the metal is such tht = wp=1016 rads Assume that Bo value is such that the electron gyro frequency wb = 10 12 rad/s. Assume that the collision frequency v is negligible. The calculations become simple if approximations are made based on the inequalities mentioned above. Relate the specification of a very low temperature to one of the assumptions given.