The ice and steam points of a certain thermometer are -20o and 100o respectively. Calculate the Celsius temperature temperature corresponding to 70o on the thermometer
-
A.
84.0o -
B.
75.0o -
C.
64.0o -
D.
58.0o
Correct Answer: Option B
Explanation
(frac{70 – 20}{100 – 20} = frac{theta – 0}{100 – 0})
(theta = frac{90 times 100}{120} = 75^oC)