Question

Movement of jogs can produce

• A.
• B.
• C.
• D.

Hint:

Jogs move by climb which involves the diffusion of vacancies. Hence, movement of jogs can produce vacancies in the crystal structure.

Answer 1

The Correct Option is B

Step 1: Understanding jogs in dislocations Jogs are steps or irregularities along a dislocation line that can move under stress or temperature. Step 2: Mechanism of jog movement When jogs move via the climb mechanism (out of their slip plane), they require the absorption or emission of point defects—typically vacancies. Conclusion: Therefore, the movement of jogs leads to the production (or absorption) of vacancies, aiding in dislocation climb.