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| Q. |
A unit cell that contains lattice points only at the corners is known as |
| A. | primitive unit cell |
| B. | secondary unit cell |
| C. | layered unit cell |
| D. | derived unit cell |
| Answer» A. primitive unit cell | |
| Explanation: if a unit cell chosen contains lattice points only at its corners, it is called a primitive or simple unit cell. it contains only one lattice point since each point at the eight corners is shared equally with adjacent unit cells. | |
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