Question

Why can't you use labaratory thermometer to measure human body temperature.

Answer 1

A laboratory thermometer cannot be used to measure the temperature of a human body because the range of a laboratory thermometer is high generally from –10°C to 110°C, while as normal body temperature in humans is only 37°C. Also laboratory thermometer does not have a kink, so mercury falls on its own which does not give accurate temperature of the human body because it does not have a kink .

kink prevents mercury from falling on its own.