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Physics · Oct / Nov 2018 · Paper 11 · Question 15

5054Thermal expansion of solids, liquids and gases

A metal lid fits tightly on a glass jar. Which process makes it easier to remove the lid from the jar?

  1. Acool the lid only
  2. Bput the jar and lid in a refrigerator
  3. Cwarm the jar only
  4. Dwarm the lid only

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Correct answer: D. warm the lid only

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