Physics
JAMB 1995
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 60
oC?
-
A.
33.3mm
-
B.
36.0mm
-
C.
96.0mm
-
D.
136.0mm
Correct Answer: Option D
Explanation
200mm ..... 100oC
Xmm ..... 60oC
400mm ..... 0oC
\(\frac{x - 40}{200 - 40}\) = \(\frac{60 - 0}{100 - 0}\)
X = 136mm
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