11. Compare the maximum angular frequencies of waves that can pass through the [100] and [111] direction of a simple cub
Posted: Tue May 17, 2022 8:57 pm
11. Compare the maximum angular frequencies of waves that can pass through the [100] and [111] direction of a simple cubic crystal, supposing that the atoms not lying in the direction of propaga- tion of the wave do not disturb it. Derive the necessary formula. Ans. 3: