JEE Main 9 Apr 2019 Paper 2 Solved Paper

Section: Physics

Question : 9 of 90

Marks: +1, -0

Two materials having coefficients of thermal conductivity ‘3K’ and ‘K’ and thickness ‘d’ and ‘3d’, respectively, are joined to forma slab as shown in the figure. The temperatures of the outer surfaces are ‘θ2 ’ and ‘θ1 ’ respectively, (θ2>θ1) . The temperature at the interface is:

[9 Apr 2019 Shift 2]

θ1
6
+
5θ2
6
θ2+θ1
2
θ1
10
+
9θ2
10
θ1
3
+
2θ2
3

Validate

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