ICSE-VIII-Physics
06: Heat Energy Class 8 Physics
- #21One rod of copper and another identical rod of iron are heated to the same rise in temperature. Which rod will expand more? Give reason.Ans : When two identical rods (same length) are of different material and heated to same rise in temperature, the copper rod will expand more than iron, since expansion depends on nature of material.
(Coefficient of linear expansion of copper 17 ×10-6 per °C > iron 13 ×10-6 per °C)