Question

Two identical rods of copper are heated to
different temperatures – one by 5°C and the other
by 10°C. Which rod will expand more ?​

Answer 1

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• Two rods with same length and material are heated to different temperature. Lt - L0 ∝ t ∴ Rod with higher temperature i. e. at 10°C will expand more.

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$\small \underline \red {\sf{ Extra \ information :}}$

• 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.

Answer 2

• Two rods with same length and material are heated to different temperature. Lt - L0 ∝ t ∴ Rod with higher temperature i. e. at 10°C will expand more.

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