Q 12-08-161JEE MainJEE Main 2021 (20 Jul, Shift 2)Easy
In an electromagnetic wave, the electric field vector and magnetic field vector are given as $\vec E = E_0\hat i$ and $\vec B = B_0\hat k$, respectively. The direction of propagation of electromagnetic wave is along:
Answer: (D) $(-\hat j)$
The wave travels along $\vec E\times\vec B$, i.e. along $\hat i\times\hat k = -\hat j$.
Solution by Sreeraj P, M.Sc Physics