A thermometer has its stem marked in millimeter instead o...
A thermometer has its stem marked in millimeter instead of degree Celsius. The lower fixed point is 30mm and the upper is 180mm. Calculate the temperature in degree celsius when the thermometer reads 45mm.
67.5oC
30.0oC
25.0oC
15.0oC
10.0oC
Correct answer is E
θ = (x/y) x 100.
where x = UFP -LFP -another scale, and y = UFP - LFP for celsius scale.
=> {(45-30)/(180-30)} x 100 = 10.0oC