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Thermal Properties Of Matter

Question
CBSEENPH11020393
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One end of a thermally insulated rod is kept at a temperature T1 and the other at T2. The rod is composed of two sections of lengths

  • (k2

  • (k2

  • (k1

  • (k1A1 T1 + k2A2T2) / (k1A1 + k2A2)

Solution

C.

(k1 fraction numerator left parenthesis straight T subscript 1 minus straight T right parenthesis straight k subscript 1 over denominator calligraphic l subscript 1 end fraction space equals space fraction numerator left parenthesis straight T minus straight T subscript 2 right parenthesis straight k subscript 2 over denominator calligraphic l subscript 2 end fraction straight T space equals space fraction numerator straight T subscript 1 straight k subscript 1 calligraphic l subscript 2 space plus space straight T subscript 2 straight k subscript 2 calligraphic l subscript 1 over denominator straight k subscript 1 calligraphic l subscript 2 space plus straight k subscript 2 calligraphic l subscript 1 end fraction

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