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O-LevelPhysicsThermal Physics5054/11 · May/June 2015 · Q171 Mark

Why is there a constriction in a clinical thermometer?

Ato give the thermometer a smaller temperature range
Bto make the thermometer more sensitive
Cto prevent the mercury breaking the bulb when it expands
Dto stop the mercury from going back to the bulb

✓ Correct answer

D: to stop the mercury from going back to the bulb

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About this question

Topic
Thermal Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source
O-Level Physics, May/June 2015 Paper 1 Variant 1, question 17.

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