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Heat and Thermodynamics question

2022 · 27 Jul · Shift 1 · Q53
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  5. /2022 · 27 Jul · Shift 1 · Q53

Heat and Thermodynamics question

2022 · 27 Jul · Shift 1 · Q53

JEE MainPhysicsHeat and ThermodynamicsMCQ+4 / −1
If K1K_{1}K1​ and K2K_{2}K2​ are the thermal conductivities, L1L_{1}L1​ and L2L_{2}L2​ are the lengths and A1A_{1}A1​ and A2A_{2}A2​ are the cross sectional areas of steel and copper rods respectively such that K2K1=9,A1A2=2,L1L2=2\frac{K_{2}}{K_{1}}=9, \frac{A_{1}}{A_{2}}=2, \frac{L_{1}}{L_{2}}=2K1​K2​​=9,A2​A1​​=2,L2​L1​​=2. Then, for the arrangement as shown in the figure, the value of temperature T\mathrm{T}T of the steel - copper junction in the steady state will be: JEE Main 2022 (Online) 27th July Morning Shift Physics - Heat and Thermodynamics Question 160 English
  1. A
    18∘C18^{\circ} \mathrm{C}18∘C
  2. B
    14∘C14^{\circ} \mathrm{C}14∘C
  3. C
    45∘C45^{\circ} \mathrm{C}45∘C
  4. D
    150∘C150^{\circ} \mathrm{C}150∘C
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