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JEE Main Physics Class 11 Thermodynamics Part 1 Questions

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Question : 6

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Two thin metallic spherical shells of radii r1 and r2(r1<r2) are placed with their centres coinciding. A material of thermal conductivity K is filled in the space between the shells. The inner shell is maintained at temperature θ1 and the outer shell at temperature θ2(θ+1<θ2). The rate at which heat flows radially through the material is

[31 Aug 2021 Shift 2]

4πKr1r2(θ2−θ1)
r2−r1
πr1r2(θ2−θ1)
r2−r1
K(θ2−θ1)
r2−r1
K(θ2−θ1)(r2−r1)
4πr1r2

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