A uniform rod of cross-sectional area 2 mm2 is heated from 0°C to 40°C. What would be the value of energy stored per unit volume if Young's modulus is 1011 N/m2 and the linear expansion coefficient is 12 × 10-6 per °C?
1
10250 J/m3
2
12500 J/m3
3
11520 J/m3
4
55120 J/m3