Question

Heat is conducted through a uniform rod ABC of length 1 m keeping the end A at \(100^{\circ}C\). If the temperature at the point B at a distance 0.4 m from the end A is \(80^{\circ}C\) and that at the other end C is \(40^{\circ}C\), then the ratio of heat conducted through AB to that through BC is

• A. \(3:4\)
• B. \(2:1\)
• C. \(1:2\)
• D. \(2:3\)
• E. \(1:1\)

Hint:

For steady state heat conduction, \(\frac{H_{AB}}{H_{BC}} = \frac{\Delta T_{AB}/L_{AB}}{\Delta T_{BC}/L_{BC}}\).

Answer 1

The Correct Option is A