If K1 and K2 are the thermal conductivities, L1 and L2 are the lengths and A1 and A2 are the cross sectional areas of steel and copper rods respectively such that
\(\frac{K_2}{K_1}=9, \frac{A_1}{A_2}=2, \frac{L_1}{L_2}=2\)
. Then, for the arrangement as shown in the figure, the value of temperature T of the steel-copper junction in the steady state will be
1
18°C
2
14°C
3
45°C
4
150°C
5
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