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Consider a compound slab consisting of two different materials having equal thickness

Consider a compound slab consisting of two different materials having equal thickness and thermal conductivities K and 2K respectively. The equivalent thermal conductivity of the slab is

Options

(a) √2K
(b) 3K
(c) 4K/3
(d) 2K/3

Correct Answer:

4K/3

Explanation:

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