Two rods of same length and material transfer a given amount of heat in 12 seconds, when they are joined end to end. But when they are joined lengthwise, then they will transfer same heat in same conditions in
Text Solution
Verified by ExpertsThe correct answer is:
D
Let the heat transferred be Q.
When rods are joined end to end. Heat transferred by each rod 
…...(i)
When rods are joined lengthwise, 
…...(ii)
From equation (i) and (ii) we get 
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