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JAMB Physics 1984 Question 29

Question 29

Temperature and Thermometers

Which of the following properties of matter CANNOT be utilized for temperature measurement? The

  1. A.length of a liquid column
  2. B.volume of a gas at constant pressure
  3. C.pressure of a gas at constant volume
  4. D.resistance of a metallic wire
  5. E.current produced in a photoelectric effect.
Show the answer and explanation

Answer: E (current produced in a photoelectric effect.)

Explanation

Liquid length, gas volume, gas pressure and wire resistance all change steadily with temperature and are used in thermometers. Photoelectric current depends on light, not temperature.