Two rods of same metal of same area of cross-section are respectively of 0.5 m and 0.8 m lengths. Assuming that the rate of heat conduction through the two rods is same, calculate the temperature difference between the ends of the first rod if the temperature difference between the ends of the second rod is 72°C
1
115.5°C
2
18°C
3
45°C
4
More than one of the above
5
None of the above