Question

The diagram shows two identical rods connected in series. The rods are conducting heat in steady state. The ends of the rod are maintained at temperatures 2T and T. Now, a small block at temperature 3T is placed between the rods.

Now choose the incorrect statements :

• A. The temperature of the block will decrease.
• B. The block will release heat towards both the sides.
• C. The final temperature of the block will be $\frac{3T}{2}$.
• D. The temperature of block will first increase then it will decrease.

Answer 1

Answer: (D)

The temperature of block will first increase then it will decrease.

Answer 2

Rod will be in unsteady state.