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Physics-

General

Easy

Question

Two slabs A & B having lengths $l subscript 1 end subscript$ and $l subscript 2 end subscript$ , respectively, and same cross - section have thermal conductivities $K subscript 1 end subscript$ and $K subscript 2 end subscript$ respecitvely. They are placed in contact and a constant temperature difference is maintained across the combination. The ratio of the quantities of heat flowing through A and B in a given time is

$\frac{K_{1}}{1_{1}} : \frac{K_{2}}{1_{2}}$
$\frac{K_{1}}{1_{2}} : \frac{K_{2}}{1_{1}}$
$K_{1} l_{1} : K_{2} l_{2}$
1:1

The correct answer is: 1:1

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