When a force is applied at one end of an elastic wire, it produces a strain e in the wire. If Y is the Young's modulus of the material of the wire, the amount of energy stored per unit volume of the wire is given by:
Correct answer: D. 1/2Ye²
- A. Ye
- B. Ye²
- C. 1/2Ye
- D. 1/2Ye²
Explanation
The energy stored per unit volume in an elastic material is given by the formula 1/2 * stress * strain. In this case, stress is given by Young's modulus (Y) times strain (e). Therefore, the energy stored per unit volume is 1/2 * Y * e^2.
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