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
K2K1=9,A1A2=2,L1L2=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
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1740177/original_7.soln.png)