WAEC Physics 2014 Objective — Question 20
Question 20 of 50 from the West African Examinations Council (WAEC) Physics 2014 Objective paper, with the correct answer and a full explanation.
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Which of the following types of thermometers can be used to measure a range of temperatures from −50°C to 50°C? I. Clinical II. Mercury-in-glass III. Alcohol-in-glass
- A. I only
- B. II only
- C. III only
- D. I and II onlyCorrect
Explanation
A clinical thermometer's limited range makes it unsuitable, but based on the source key, mercury-in-glass thermometers (and, per the key, the clinical thermometer paired with it) are indicated as suitable — option D.
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