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JAMB Physics 1998 Question 17

Question 17

Temperature and Thermometers

A platinum resistance thermometer records 3.0 Ω at 0 °C and 8.0 Ω at 100 °C. If it records 6.0 Ω in a certain environment, the temperature of the medium is

  1. A.80 °C
  2. B.60 °C
  3. C.50 °C
  4. D.30 °C
Show the answer and explanation

Answer: B (60 °C)

Explanation

θ = (6.0 − 3.0)/(8.0 − 3.0) × 100 = 3/5 × 100 = 60 °C.