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8.Mechanical Properties of Solids
easy
Which of the following is true for elastic potential energy density
A
Energy density $=$ $\frac{1}{2} \times {\rm{strain}} \times {\rm{stress}}$
B
Energy density $=$ ${{\rm{(strain)}}^2} \times {\rm{volume}}$
C
Energy density $=$ $strain$ $\times$ $volume$
D
Energy density $=$ $stress$ $\times$ $volume$
Solution
(a) Elastic potential energy per unit volume is given by
$u=\frac{1}{2} \times$ stress $\times$ strain
Standard 11
Physics
