The ice and steam points of mercury-in-glass thermometer of centigrade scale and of uniform bore correspond respectively to 3cm and 19cm lengths of the mercury thread when the length is 12cm, the temperature is
A
32oC
B
48oC
C
56oC
D
65oC
E
75oC
Verified Correct Answer: C.
Physical Principles & Numerical Solution
steam point - ice point in oC = 100oC - 0oC
= 19cm - 3cm = 16cm
12cm - 3cm = 9cm
\(\frac{9}{16}\) x 100oC = 56.25oC
= 56oC
Source: Myschool Past Questions Archive (Record #28948)