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JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER
1
Medium
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Understanding
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Assertion (A): Solids expands on heating
Reason (R): Atoms of the solid are an harmonic oscillators
Reason (R): Atoms of the solid are an harmonic oscillators
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Correct option: A
If both (A) and (R) are true and (R) is the correct explanation of (A).
Option A is correct because solids expand due to the anharmonic nature of atomic vibrations, which increases with temperature.
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