SSC SSC JE Mechanical 2025 Mock Test Series (Paper 1 & Paper 2) Strength of Materials Simple Stress and Strain Thermal Stress and Strain
A rod of 2 m long at a temperature of 10°C is heated to 80°C . If the coefficient of thermal expansion of the rod is 0.000012 per °C and E is 100 GPa, the thermal stress under the complete prevention of expansion is:
1
10 MPa
2
12 MPa
3
96 MPa
4
84 MPa