JAMB - Physics (2013 - No. 12)
Calculate the length which corresponds to a temperature of 20oC if the ice and steam points of an unguarded thermometer are 400 mm apart
20mm
30mm
60mm
80mm
説明
At 100oC = 400
Therefore,
At 20oC = \(\frac{400}{100} \times \frac{20}{1}\) = 80
Therefore,
At 20oC = \(\frac{400}{100} \times \frac{20}{1}\) = 80