The temperature of the two outer surfaces of a composite slab, consisting of two…
Physics · NEET · NTA Exams — Properties of Solids and Liquids
The temperature of the two outer surfaces of a composite slab, consisting of two materials having coefficients of thermal conductivity K and 2K and thickness x and 4x, respectively, are 
and \(T_{1}\left(T_{2}>T_{1}\right) .\) The rate of heat transfer through the slab, in a steady state is \(\left(\frac{\left.A T_{2}-T_{1}\right) K}{x}\right),\) with f equal to
and \(T_{1}\left(T_{2}>T_{1}\right) .\) The rate of heat transfer through the slab, in a steady state is \(\left(\frac{\left.A T_{2}-T_{1}\right) K}{x}\right),\) with f equal to 
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Answer
(A)
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