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NEET UG PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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Two rods of same length and material transfer a given amount of heat in 12 s, when they are joined end to end (ie, in series). But when they are joined in parallel, they will transfer same heat under same conditions

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Correct option: B

3 s

Option B (3 s) is correct because when in parallel, the effective area doubles, leading to a fourfold increase in heat transfer rate and a quarter of the time.

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