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The lower and upper fixed points marked on a mecury-in-glass thermometer are 210mm ...
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Temperature And Its Measurement
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The lower and upper fixed points marked on a mecury-in-glass thermometer are 210mm apart. The end of the mercury column in the tube is 49mm above the lower fixed point in a room. What is the temperature of the room in degrees Celsius?
A.
55.3
o
C
B.
23.3
o
C
C.
49.0
o
C
D.
16.1
o
C
E.
76.7
o
C
Show Answer
Show Explanation
Correct Answer: B
Explanation
210mm .... 100
o
C
49mm .... \(\theta\)
0mm .... 0
o
C
\(\frac{49 - 0}{210 - 0}\) = \(\frac{\theta - 0}{100 - 0}\)
\(\frac{49}{210}\) = \(\frac{\theta}{100}\)
\(\theta\) = 23.3
o
C
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