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Channel: Doubtnut
Date: 2020-04-05

src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/RES_DPP_PHY_11_E01_031_Q01.png" width="80%" Figure shows in cros section a wall consisting of four layers with thermal conductivities `K_(1)=0.06W//mK`  `K_(3)=0.04W//mK` and `K_(4)=0.10W//mK`. The layer thicknesses are `L_(1)=1.5cm,L_(3)=2.8` cm and `L_(4)=3.5cm` the temperature of interfaces is as shown in figure. energy transfer through the wall is in steady state.  Q. The temperature of the inteface between layers 2 and 3 is