alleryYoung's modulus Y is ratio of:
AForce to area
BLongitudinal stress to longitudinal strain
CStrain to stress
DStress to volume
Answer & Solution
Correct answer: B. Longitudinal stress to longitudinal strain
We have Y = (F/A)/(ΔL/L).
So Y = FL/(A × ΔL).
For steel ≈ 2 × 10¹¹ Pa.
Larger Y means stiffer material.
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