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Two conducting Rods of same cross-section: The ratio of thermal conductivities of two materials of different rods of same cross-section is 5:3. If the

Two conducting Rods of same cross-section: The ratio of thermal conductivities of two materials of different rods of same cross-section is 5:3. If the thermal resistance of these rods are in ratio 1:3 find the ratio of lengths of these rods.

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