$\begin{array}{1 1}(1) For\; an \;electromagnetic \;wave \;propagating \;in \;+x\; direction \;the \;electric \;field \;is \; \overrightarrow{E} = \frac{1}{\sqrt2} E_{yz}(x,t)(\hat{y} - \hat{z})\; and\; the \;magnetic \;field \;is \;\overrightarrow{B} = \frac{1}{\sqrt2} B_{yz} (x,t)(\hat{y} + \hat{z}) \\ (2) For\; an\; electromagnetic\; wave\; propagating\; in\; +x\; direction\; the\; electric\; field\; is\; \overrightarrow{E} = \frac{1}{\sqrt2} E_{yz} (y,z,t) (\hat{y}+ \hat{z}) \; and\; the \; magnetic\; field\; is\; \overrightarrow{B} = \frac{1}{\sqrt2} B_{yz}(y,z,t) (\hat{y}+\hat{z}) \\ (3) For\; an\; electromagnetic\; wave\; propagating\; in\; +y\; direction\; the\; electric\; field\; is\; \overrightarrow{E} = \frac{1}{\sqrt2} E_{yz}(x,t)\hat{y}\; and\; the\; magnetic\; field\; is\; \overrightarrow{B} = \frac{1}{\sqrt 2} B_{yz} (x,t) \hat{z} \\ (4) For\; an\; electromagnetic\; wave\; propagating\; in\; +y\; direction\; the\; electric\; field\; is\; \overrightarrow{E} = \frac{1}{\sqrt2} E_{yz}(x,t)\hat{z}\; and\; the\; magnetic\; field\; is\; \overrightarrow{B} = \frac{1}{\sqrt 2} B_{z} (x,t) \hat{y} \end{array} $
