A composite slab consists of two parts of equal thickness. The thermal conductivity of one is twice that of the other. What will be the ratio of the temperature difference across the two layers in the

Question

A composite slab consists of two parts of equal thickness. The thermal conductivity of one is twice that of the other. What will be the ratio of the temperature difference across the two layers in the state of equilibrium?

Options:

Answer:

B

Solution:

The heat current is equal, so $Δ T \propto \frac{1}{k}$ . The ratio is 2. B.

TestHub · Accepted Answer

The heat current is equal, so Δ T ∝ k 1 ​ . The ratio is 2. B.

Physics - Heat & Thermo Question with Solution | TestHub

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