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JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER
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Understanding
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Assertion (A): When a strip made of iron and copper is heated it bends with iron on concave side.
Reason (R): Coefficient of linear expansion of copper is more than that of iron.
Reason (R): Coefficient of linear expansion of copper is more than that of iron.
View answer and explanation
Correct option: A
If both (A) and (R) are true and (R) is the correct explanation of (A).
Option A is correct because both the assertion and the reason are true, and the reason correctly explains why the bimetallic strip bends with iron on the concave side.
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