MCQ
A linearly polarized electromagnetic wave given as $\text{E}=\text{E}_0\hat{\text{i}}\cos(\text{kz}-\omega\text{t})$ is incident normally on a perfectly reflecting infinite wall at $z = a$. Assuming that the material of the wall is optically inactive, the reflected wave will be given as:
- A$\text{E}_\text{r}=-\text{E}_0\hat{\text{i}}\cos(\text{kz}-\omega\text{t})$
- ✓$\text{E}_\text{r}=\text{E}_0\hat{\text{i}}\cos(\text{kz}+\omega\text{t})$
- C$\text{E}_\text{r}=-\text{E}_0\hat{\text{i}}\cos(\text{kz}+\omega\text{t})$
- D$\text{E}_\text{r}=\text{E}_0\hat{\text{i}}\sin(\text{kz}-\omega\text{t})$
