The temperature of the two outer surface of a composite slab, consisting of two materials…
Physics · JEE Advanced · NTA Exams — Thermodynamics
The temperature of the two outer surface of a composite slab, consisting of two materials having coefficients of thermal conductivity K and 2K thickness x and 4x, respectively are T2 and T1 (T2 > T1). The rate of heat transfer through the slab, in a steady state is \(\left(\frac{\mathrm{A}\left(\mathrm{~T}_{2}-\mathrm{T}_{1}\right) \mathrm{K}}{\mathrm{x}}\right)\)f, with f equals to
- 1
- 1/2
- 2/3
- 1/3
Answer
(D) 1/3
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