NEET PhysicsClass 11Anomalous expansion of water and thermal stressHardSingle correct

A steel rod of cross-sectional area 2.0 cm² is clamped rigidly between two walls at room temperature and then heated through 50 K. For steel, Y = 2.0 × 10¹¹ N m⁻² and α = 1.2 × 10⁻⁵ K⁻¹. The compressive force the walls exert on the rod is

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A steel rod of cross-sectional area 2.0 cm² is clamped rigidly between two walls at room temperature and then heated through 50 K. For steel, Y = 2.0 × 10¹¹ N m⁻² and α = 1.2 × 10⁻⁵ K⁻¹. The compressive force the walls exert on the rod is

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