The lower and upper fixed points marked on a Mercury-in-g...
The lower and upper fixed points marked on a Mercury-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
16.43oC
Correct answer is B
49−0210−0 = θ−0100−θ
49210=θ100
49 x 100 = 210 x θ
θ=4900210 = 23.3o