Question

A thermometer measures temperature to the nearest 0.5°C. Which measurement shows an appropriate level of precision for the thermometer?

A. 14°C
B. 14.5°C
C. 15°C
D. 14.55°C

Answer 1

14.5°C as the least account is only 0.5 so the

Accurate value= value +- 0.5

Answer 2

The correct answer is B. 14.5° C

Explanation:

Level of precision is = VALUE ± ERROR

= 14 ± 0.5

= 14.5 0R 13.5

13.5 is rejected as it is less than the measured value so the required level of precision is 14.5° C

So, the right answer is 14.5° C