A composite wall of a furnace has two layers of equal thickness having thermal c

Question

A composite wall of a furnace has two layers of equal thickness having thermal conductivities in the ratio 2:3. What is the ratio of temperature drop across the two layers?

Options:

A . 2:3

B . 3:2

C . 1:2

D . log e 2 : log e 3

Answer: Option B
Answer: (b).3:2

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