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Physics Question 42 – NEET-UG 2024

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A metallic bar of Young's modulus, 0.5×1011 N m−2 and coefficient of linear thermal expansion 10−5 ∘C−1, length 1 m and area of cross-section 10−3 m2 is heated from 0∘C to 100∘C without expansion or bending. The compressive force developed in it is:
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