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  1. Two metallic plate of equal thickness and coefficient thermal conductivity K1 and K2 put together face to face. A common plate is constructed. What is equivalent K?

    2. A.

     K1k2/k1+k2
    B.

     2k1k2/k1+k2
    C.

     K1+k2/k1k2
    D.

     None

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    Answer : Option B

    Explanation :

    Equivalent K will be 2k1k2/k1+k2.

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