A plane monochromatic wave lies in the visible region. Ithe sinusoidal variation with time by the following components of electric field Ex = 0, Ey = 4 sin ()2,xvtπλ−Ez = 0 Where υ= 5 ×1014 Hg And λis the wavelength of light. (a) What is the direction of propagation of the wave (b) What is its amplitude (c) Compute the component of magnetic field