GATE XE 2020 XE-D Q15: Mechanics of deformable bodies

The bar AB is fixed at A and is separated by a gap of 0.005 mm from wall at C as shown. The temperature of the bar is increased by

C. If the Young’s modulus of the bar is

GPa and the coefficient of thermal expansion is

C, then the magnitude of the compressive stress (in MPa) developed in the bar is _____.

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