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The figure shows a system of two concentric spheres of radii r1 and r2 and kept at temperatures T1 and T2,

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asked Mar 23, 2018 in Physics by paayal (26,720 points) ● 4 ● 6 ● 46

The figure shows a system of two concentric spheres of radii r1 and r2 and kept at temperatures T1 and T2, respectively. The radial rate of flow of heat in a substance between the two concentric spheres is proportional to

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answered Mar 23, 2018 by sanjaydas (61,430 points) ● 5 ● 7 ● 7
selected Mar 26, 2018 by Vikash Kumar
 
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(a) : For conduction from inner sphere to outer one,

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