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Q: Which of the following materials is expected to have the least value of Young modulus of elasticity?
  • A. Wood
  • B. Copper
  • C. Glass
  • D. Aluminium
Correct Answer: Option A - Material Young modulus (E) Copper 117 GPa Aluminium 69 GPa Glass 50 – 90 GPa Wood 7–14 GPa
A. Material Young modulus (E) Copper 117 GPa Aluminium 69 GPa Glass 50 – 90 GPa Wood 7–14 GPa

Explanations:

Material Young modulus (E) Copper 117 GPa Aluminium 69 GPa Glass 50 – 90 GPa Wood 7–14 GPa