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Which one of the following statements with regard to expansion of materials due to heating is n o t correct?

Options

  1. AAs ice melts, it expands uniformly up to 4^ C .
  2. BMercury thermometer works using the principle of expansion due to heating.
  3. CSmall gap is kept between two rails to allow for expansion due to heating.
  4. DThe length of metallic wire increases when its temperature is increased.

Correct answer

A. As ice melts, it expands uniformly up to 4^ C .

Step-by-step solution

Most solids expand when heated and contract when cooled. Water/ice is anomalous in that it expands when cooled, at least near its freezing point.

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