please solve

A snapshot graph of an EM plane wave is shown below. The electric field is parallel to the y-axis and the magnetic field is parallel to the z-axis. The points labeled 1, 2 and 3 are in the (x,y) plane. EN plane wave (3D view) F B Rank the magnitude of the magnetic field at points 1, 2 and 3. If field is 0 at any of these points, state so explicitly. Explain. What is the direction of propagation of the plane wave? Explain. If the wavelength of the plane wave is ) - 600 nm and the magnitude of the electric field is Eo = 10 V/m, write an expression for the B field in the form B - Bosin(Cx + Dt) . Give the values of Bo, C and D. Take for the speed of light c - 3x108 m/s