McqMate
| Q. |
In the powder method, in powder sample various samples are also present in every possible orientation. |
| A. | miller indices |
| B. | lattice |
| C. | unit cell |
| D. | atoms |
| Answer» B. lattice | |
| Explanation: lattice planes are present in the powder sample in every possible orientation. for each set various lattice planes, therefore, at least some crystals must be oriented at the bragg angle Θ, to the incident beam and thus diffraction occurs for these crystals and planes. | |
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