Question

If x longitudinal strain is produced in a wire of Young's modulus y, then energy stored in the material of the wire per unit volume is

• A. $y x ^ { 2 }$
• B. $2 y x ^ { 2 }$
• C. $\frac { 1 } { 2 } y ^ { 2 } x$
• D. $\frac { 1 } { 2 } y x ^ { 2 }$

Answer 1

Answer: (D)

$\frac { 1 } { 2 } y x ^ { 2 }$

Answer 2

Energy stored per unit volume