Two rectangular blocks, having identical dimensions, can be arranged either in…
Physics · JEE Advanced · NTA Exams — Properties of Solids and Liquids
Two rectangular blocks, having identical dimensions, can be arranged either in configuration I or in configuration II as shown in the figure. One of the blocks has thermal conductivity κ and the other 2κ. The temperature difference between the ends alossng the x-axis is the same in both the configurations. It takes 9 s to transport a certain amount of heat from the hot end to the cold end in the configuration I. The time to transport the same amount of heat in the configuration II is
- 2.0 s
- 3.0 s
- 4.5 s
- 6.0 s
Answer
(B) 3.0 s
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