Strain has no physical unit, so the elastic modulus carries the same unit as:
AStress
BStrain
CLength
DVolume
Answer & Solution
Correct answer: A. Stress
1. Modulus equals stress divided by strain.
2. Dividing by a pure number changes no unit.
3. So it shares the unit of stress.
_Source: OpenStax University Physics Volume 1, Chapter 12, Static Equilibrium and Elasticity._
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