Q 1210134019.     A rod of 1 m length and area of cross-section `1 cm^2` is connected across two heat reservoirs at temperatures `100^o C` and `0^o C` as shown. The heat flow per second through the rod in steady state will be [Thermal conductivity of material of rod `= 0.09` kcal `m^(-1) s^(-1) (\\^oC)]`

A

`9 xx 10^(-4)` kcal/s

B

`9` kilocal/ sec

C

`0.09` kilocal/sec

D

`9 xx 10^(-6)` kilocal/sec

HINT

Heat conduction.

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