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A wall consists of alternating blocks wi...

A wall consists of alternating blocks with length 'd' and coefficient of thermal conductivity `k_(1)` and `k_(2)`. The cross sectional area of the blocks are the same. The equivalent coefficient of thermal conductivity of the wall between left and right is

A

`K_(1)+K_(2)`

B

`((K_(1)+K_(2)))/(2)`

C

`(K_(1)K_(2))/(K_(1)+K_(2))`

D

`(2K_(1)+K_(2))/(K_(1)+K_(2))`

Text Solution

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The correct Answer is:
B
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