The lower and upper fixed points marked on a mecury-in-gl...
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
Correct answer is B
210mm .... 100oC
49mm .... θ
0mm .... 0oC
49−0210−0 = θ−0100−0
49210 = θ100
θ = 23.3oC
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