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| Q. |
A disturbance in a region between two ideal parts of a crystal is known as |
| A. | boundary defect |
| B. | point defect |
| C. | line defect |
| D. | volume defect |
| Answer» C. line defect | |
| Explanation: line defect is regarded as a disturbed region between two perfect parts of a crystal. they may be of either edge dislocation type or screw dislocation. | |
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