MCQ
An electromagnetic wave is represented by the electric field $\vec E = {E_0}\hat n\,\sin \,\left[ {\omega t + \left( {6y - 8z} \right)} \right]$. Taking unit vectors in $x, y$ and $z$ directions to be $\hat i,\hat j,\hat k$ ,the direction of propogation $\hat s$, is
- ✓$\hat S = \left( {\frac{{ - 3\hat j + 4\hat k}}{5}} \right)$
- B$\hat S = \left( {\frac{{ 4\hat j - 3\hat k}}{5}} \right)$
- C$\hat S = \left( {\frac{{ - 4\hat k + 3\hat j}}{5}} \right)$
- D$\hat S = \left( {\frac{{ - 3\hat i - 4\hat j}}{5}} \right)$
