Consider the following processes:1. Extension of a spring2. Plastic de – McqOptions

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1.	Consider the following processes:1. Extension of a spring2. Plastic deformation of a material3. Magnetization of a material exhibiting hysteresisWhich of the above processes are irreversible?
A.	1 and 2 only
B.	1 and 3 only
C.	2 and 3 only
D.	1, 2 and 3
Answer» D. 1, 2 and 3

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