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Physics · May / June 2019 · Paper 11 · Question 19

5054Thermal expansion of solids, liquids and gases

The diagram shows two thermometers P and Q that are identical except that P contains less mercury. Which statement is correct?

  1. AThe lowest measureable temperature is the same on P and on Q.
  2. BThe range of P is equal to the range of Q.
  3. CThe scales on P and Q are both linear.
  4. DThe sensitivity of P is equal to the sensitivity of Q.

As printed in the paper

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Correct answer: C. The scales on P and Q are both linear.

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