Physics
One rod of copper and another identical rod of iron are heated to the same rise in temperature. Which rod will expand more? Give reason.
Heat Energy
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Answer
Copper rod will expand more than iron rod. The increase in length of the rod depends on the material of the rod. The coefficient of linear expansion of copper (17) is more than that of iron (12), so copper rod expands more than iron rod for the same rise in temperature.
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