The lower and upper fixed points marked on ..

Question 1 Report

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?

55.3oC

23.3oC

49.0oC

16.1oC

76.7oC

Answer Details

210mm .... 100oC

49mm .... $θ$

0mm .... 0oC

$\frac{49 - 0}{210 - 0}$ = $\frac{θ - 0}{100 - 0}$

$\frac{49}{210}$ = $\frac{θ}{100}$

$θ$ = 23.3oC

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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 ...