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Which of the following is true for elastic potential energy density
  • AEnergy density $=$ $\frac{1}{2} \times {\rm{strain}} \times {\rm{stress}}$
  • BEnergy density $=$ ${{\rm{(strain)}}^2} \times {\rm{volume}}$
  • CEnergy density $=$ $strain$ $\times$ $volume$
  • DEnergy density $=$ $stress$ $\times$ $volume$
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