Question

The lower and upper fixed point of a Mercury in a glass thermometer are marked Y and 180mm respectively ,on a particular day the Mercury meniscus in the thermometer rises to 45mm, if the corresponding reading on a Celsius scale is 10° calculate the value of Y

Answer 1

Explanation:

The upper and lower fixed points of a thermometer are separated by 180 mm. Now the full scale is 100

∘

C. If the mercury thread is at the point X the temperature reading in the scale will be:

t=

180

90

×100

o

C.

So, the reading will be 50

∘

C