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[" 17) A metal rod of length "2m" has cr...

[" 17) A metal rod of length "2m" has cross sectional areas "],[2A" and "A" as shown in figure.The ends are maintained "],[" at temperatures "100^(@)C" and "70^(@)C" .The temperature "],[" at middle point "C" is......"^(@)C],[" "Ioor "],[qquad 2^(24)],[hline]

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