Post-UTME Physics 2010 Objective — Question 3
Question 3 of 10 from the Post-UTME Screening (Post-UTME) Physics 2010 Objective paper, with the correct answer and a full explanation.
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A barometer can be used in determining the length of a: I. mountain II. Depth of a mine III. Dew point. Which of the following is/are correct?
- A. I, II, III
- B. II and III only
- C. I and III only
- D. I and II only
Explanation
A barometer measures atmospheric pressure and can be used to estimate altitude/depth via pressure differences (I and II); the source's key marks 'III only' as correct, though physically a barometer does not measure dew point — this looks like a likely error in the original key.
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