The ice and steam points of a certain thermometer are -20 o and 100 o
PHYSICS
WAEC 2002
The ice and steam points of a certain thermometer are -20o and 100o respectively. Calculate the Celsius temperature temperature corresponding to 70o on the thermometer
- A. 84.0o
- B. 75.0o
- C. 64.0o
- D. 58.0o
Correct Answer: B. 75.0o
Explanation
\(\frac{70 - 20}{100 - 20} = \frac{\theta - 0}{100 - 0}\)
\(\theta = \frac{90 \times 100}{120} = 75^oC\)
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