In a dielectric medium ( = 9 o , = o ) , a plane

In a dielectric medium (ε = 9ε_o, μ = μ_o), a plane wave with H = 0.2 cos(10⁹t – kx – k√8z)a_y A/m is incident on an air boundary at z = 0. Find
(a) θ_r and θ_t
(b) k
(c) The wavelength in the dielectric and in air
(d) The incident E
(e) The transmitted and reflected E
(f) The Brewster angle