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JAMB Physics 1987 Question 16

Question 16

Temperature and Thermometers

The distance between the fixed points of a centigrade thermometer is 20 cm. What is the temperature when the mercury level is 4.5 cm above the lower mark?

  1. A.22.5°C
  2. B.29.0°C
  3. C.90.0°C
  4. D.100.0°C
Show the answer and explanation

Answer: A (22.5°C)

Explanation

θ = (4.5/20) × 100 = 22.5°C.