**Claim:** For a wave heading towards a boundary between two media at an oblique angle, $\omega_I = \omega_R = \omega_T$. 1. True 2. False Note: * Correct Answer: A * All are the same
## Announcements * Quiz 5 (this Friday) * Construct the expression for plane wave given a description * Both complex and real expressions * Combine two plane waves and describe the resulting superposed wave * Think: Problem 2 on HW 8
**Claim:** For a wave heading towards a boundary between two media at an oblique angle, at the boundary, $\mathbf{k}_I\cdot\mathbf{r} = \mathbf{k}_R\cdot\mathbf{r} \neq \mathbf{k}_T\cdot\mathbf{r}$. 1. True 2. False Note: * Correct Answer: B * All are equal