An electromagnetic wave is represented by the electric field $\overrightarrow E = {E_0}\widehat n\sin \left[ {\omega t + \left( {6y - 8z} \right)} \right]$ . Taking unit vectors in x, y and z directions to be $\widehat i,\widehat j,\widehat k$ , the direction of propagation $\widehat s$, is :

Question

$\widehat s = {{3\widehat i - 4\widehat j} \over 5}$

$\widehat s = {{ - 4\widehat k + 3\widehat j} \over 5}$

$\widehat s = \left( {{{ - 3\widehat j + 4\widehat k} \over 5}} \right)$

$\widehat s = {{4\widehat j - 3\widehat k} \over 5}$

Solution

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