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
Explanation
Correct Option
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Discussions (11)

De sage
1 year ago
guys lets have it
the upper scale -lower scale/balance point -lower scale =©/100
upper scale=12
lower scale=3
balance point=19
©=?
12-3/19-3=©/100
factorize out
9/16=©/100
cross multiply
900=16©
therefore
©=900/16
©=56.25 approximately 56°c

NPXT
5 years ago
The values are whole in a mercury thermometer
Therefore the final answer is approximately
56°C

