COMEDK · Physics · 12. Thermal Properties of Matter
Two conductors of the same material have their diameters in the ratio \(1: 2\) and their lengths in the ratio \(2: 1\). If the temperature difference between their ends is the same, then the ratio of amounts of heat conducted per second through them will be
- A \(4: 1\)
- B \(1: 4\)
- C \(8: 1\)
- D \(1: 8\)
Answer & Solution
Correct Answer
(D) \(1: 8\)
Step-by-step Solution
Detailed explanation
The rate of heat conduction is given by \[ H=\frac{d \theta}{d t}=\frac{k A}{l} \Delta T \] Here, \(\Delta T\) is same for both conductors, so ratio of heat conduction,…
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