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 ...

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?

Answer Details

210mm .... 100oC

49mm .... $\theta$

0mm .... 0oC

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

$\frac{49}{210}$ = $\frac{\theta }{100}$

$\theta$ = 23.3oC