Please see the attached file for the entire problem.
Problem. The ratio of thermal Conductivity of material 1 to the thermal
Conductivity of material 2 is
(a)Less than 1 (b) greater than 1 (c) equal to 1 (d) infinity
And why? Give reason
There is a plot given in problem file in which both material shown.
The solution contains a detailed explanantion as to how to compare the conductivities of two separate materials from a plot comparing temperature and distance.