Question on: WAEC Physics - 2018
The diagram above illustrates the mercury-in-glass thermometer used for determining the temperature of a room. Use the data on it to determine the room temperature.
A
3.3°C
B
7.0°C
C
13°C
D
30.0°C
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Correct Option: D
Let the room temperature be X.
Then,
\(\frac{3-0}{10-0} = \frac{X-0}{100-0}\)
\(\frac{3}{10} = \frac{X}{100}\)
\(X = \frac{3 \times 100}{10}\)
= 30°C
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