Question

The lower fixed point of Celsius scale and Fahrenheit scales of a lab thermometer have the same magnitude.

• A. True
• B. False

Answer 1

The correct option is B False

Lower fixed point of a lab thermometer is the melting point of pure ice. In Celcius scale, melting point is about $0^{\circ }C$. Fahrenheit equivalent of $0^{\circ }C$ is ${32}^{\circ }F$. Hence, the magnitude of the measurement in the two scales for the thermometer is different at Lower fixed point.