WAEC Physics 2016 Objective — Question 16
Question 16 of 50 from the West African Examinations Council (WAEC) Physics 2016 Objective paper, with the correct answer and a full explanation.
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16. In the clinical thermometer, the function of the kink is to I. prevent the back flow of mercury after use. II. ensure the back flow of mercury after use. III. maintain the thermometric property of mercury. IV. allow the temperature attained to be read. A. I only B. I and II only C. I and IV only D. III and IV only
- A. I only
- B. I and II only
- C. I and IV onlyCorrect
- D. III and IV only
Explanation
The kink prevents the back flow of mercury after use, and this allows the temperature attained (after taking the body's temperature) to be read.
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