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Physics · Oct / Nov 2019 · Paper 11 · Question 22

5054Thermal expansion of solids, liquids and gases

A metal rod is heated. What happens to the rod?

  1. AIts density decreases and its mass decreases.
  2. BIts density decreases and its volume increases.
  3. CIts density increases and its mass decreases.
  4. DIts density increases and its volume increases.

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Correct answer: B. Its density decreases and its volume increases.

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