STATEMENT BASED (1) Both Statement-I and Statement-II are correct. (2) Both Statement-I and Stat...

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STATEMENT BASED
(1) Both Statement-I and Statement-II are correct.
(2) Both Statement-I and Statement-II are incorrect.
(3) Statement-I is correct and Statement-II is incorrect.
(4) Statement-I is incorrect and Statement-II is correct.
Statement-I: If a metallic bar is heated through temperature \( \Delta \mathrm{t} \), the strain is \( \alpha \Delta \mathrm{t} \).

Statement-II: If bar is free to expand, then thermal stress is given by \( \gamma \alpha \Delta \mathrm{t} \); where \( \gamma= \) youngs modulus.
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