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JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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Statement-I: A thick and thin metallic rods of same material heated through same rise of temperature then thermal stress is same.
Statement-II: Thermal stress is independent of area of cross section.
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Correct option: A
Statement-I is true and statement-II is true
Option A is correct because thermal stress depends on the material's properties, the coefficient of thermal expansion, and the temperature change, but not on the area of cross-section.

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