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Heat and Thermodynamics question

2019 · 10 Jan · Shift 1 · Q64
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Heat and Thermodynamics question

2019 · 10 Jan · Shift 1 · Q64

JEE MainPhysicsHeat and ThermodynamicsMCQ+4 / −1
A heat source at T = 103 K is connected to another heat reservoir at T = 102 K by a copper slab which is 1 mthick. Given that the thermal conductivity of copper is 0.1 WK–1m–1, the energy flux through it in the steady state is -
  1. A
    200 Wm −-− 2
  2. B
    65 Wm −-− 2
  3. C
    120 Wm −-− 2
  4. D
    90 Wm −-− 2
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