alleryStress is restoring force per unit area, while strain is the:
AFractional change in dimension
BTotal force that was applied
CArea of the cross-section
DTotal weight of the body
Answer & Solution
Correct answer: A. Fractional change in dimension
1. Strain compares the change to the original size.
2. It is a ratio with no units.
3. So strain is the fractional change in dimension.
_Source: syllabus Physics Part II, Chapter 9, Mechanical Properties of Solids._
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