Question

In a simple tetragonal structure (a=b=2a, c=3.0a), which group corresponds to the second diffraction peak?

a) (001)
b) (100)
c) (002)
d) (01)

Answer 1

The second diffraction peak in a simple tetragonal structure corresponds to the (002) plane.

Step-by-step explanation:

In a simple tetragonal structure, the indices of the diffraction peaks can be determined using the Miller indices notation. The Miller indices of a diffraction peak are given by (hkl), where h, k, and l are integers. The second diffraction peak corresponds to the (002) plane in a simple tetragonal structure. Therefore, the correct answer is c) (002).