Dimensions of strain:
AMLT
BM
CDimensionless (ratio of lengths ΔL/L)
DT
Answer & Solution
Correct answer: C. Dimensionless (ratio of lengths ΔL/L)
Strain = (ΔL)/L = (change in length)/(original length). Both same dimension, cancel out. Dimensionless. Same for shear strain (angle, in radians).
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