The ice point of an ungraduated mercury-in-glas... - WAEC Physics 1999 Question
The ice point of an ungraduated mercury-in-glass thermometer is X, while its steam point is 90o. This thermometer reads 60o when the true temperature is 40oC Calculate the value of X.
A
60o
B
48o
C
40o
D
30o
correct option: c
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