A temperature scale has a lower fixed point of ... - JAMB Physics 1995 Question
A temperature scale has a lower fixed point of 40mm and a upper fixed point of 200mm. What is the reading on this scale when a thermometer reads 60oC?
A
33.3mm
B
36.0mm
C
96.0mm
D
136.0mm
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Correct Option: D
200mm ..... 100oC
Xmm ..... 60oC
400mm ..... 0oC
(\frac{x - 40}{200 - 40}) = (\frac{60 - 0}{100 - 0})
X = 136mm
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