1. The problem statement, all variables and given/known data An em wave in free space has an electric field vector E = f(t-z/c0)x where x is a unit vector in the x direction and f(t)= exp(-t2/τ2)exp(j2πv0t). Describe the physical nature of this wave and determine an expression of the magnetic field vector. 2. Relevant equations Maxwells faradays law ∇XE=-μ δH/δt 3. The attempt at a solution I have two things I´m not so sure about. Given f(t) will the electric field now become E= exp(-(t-z/c0)2/τ2)exp(j2πv0(t-z/c0))x If so, when I use the curl of the field (dEz/dy-dEy/dz)x+(dEx/dz-dEz/dx)y+(dEy/dx-dEx/dy)z I assume everything is 0 except for dEx/dz which I´m not sure because it´s multiplied by a unit vector y. when I derivate by z I then have to intergrate by on both sides of the max eq. but I get a very complex integral. So where I did I get lost. Thanks in advance. P.S. Describing the physical nature of this wave? Do I need to state that the wave is linaear homogenous and Isotropic.