Post-UTME Physics 2015 Objective — Question 6
Question 6 of 20 from the Post-UTME Screening (Post-UTME) Physics 2015 Objective paper, with the correct answer and a full explanation.
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An instrument that uses colour change as a thermometric property for temperature measurement is called
- A. mercury thermometer
- B. resistance thermometer
- C. radiation pyrometerCorrect
- D. crystal spectrometer.
Explanation
A (optical) radiation pyrometer measures temperature using the colour/intensity of radiation emitted by a hot object.
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