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Two identical specimens are strained simultaneously in the elastic region. Sample-1 was loaded slowly and allowed to achieve thermal equilibrium, while sample-2 was loaded rapidly and heat transfer was not allowed. The stress-strain curve for these for sample 1 will be represented by the curve __________

Two identical specimens are strained simultaneously in the elastic region. Sample-1 was loaded slowly and allowed to achieve thermal equilibrium, while sample-2 was loaded rapidly and heat transfer was not allowed. The stress-strain curve for these for sample 1 will be represented by the curve __________ Correct Answer B

The sample is loaded in the elastic region so that the curve will be linear, hence curve C and D not possible. Now when sample loaded is in thermal equilibrium, there will be no temperature rise in the sample so the modulus of the material will be lower than the one which is loaded rapidly. So answer will be curve-B.

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