A perpendicularly polarized wave in air is obliquely incident upon a planar glass-air interface at an incidence angle of 30_. The wave frequency is 600 THz (1 THz = 1012 Hz), which corresponds to green light, and the index of refraction of the glass is 1.6. If the electric field amplitude of the incident wave is 50 V/m, determine
(a) The reflection and transmission coefficients, and
(b) The instantaneous expressions for E and H in the glass medium.