JAMB Physics 2011 Objective — Question 10

Question 10 of 49 from the Joint Admissions and Matriculation Board (JAMB) Physics 2011 Objective paper, with the correct answer and a full explanation.

I. High thermal capacity II. Sensitivity III. Easy readability IV. Accuracy over a wide range of temperatures. From the statements above, the qualities of a good thermometer are

A. A. I, III and IV
B. B. II, III and IVCorrect
C. C. III and IV
D. D. I, II, III and IV

Explanation

A good thermometer must have: low thermal capacity, accuracy over a wide range of temperatures, easy readability, and easy sensitivity. High thermal capacity is NOT a good quality, since it requires a large amount of heat to cause a small temperature rise, extracting too much heat from the body being measured - so the correct qualities are II, III and IV.

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