Question

what is the funcation of `kink' in a clinical thermometer?

Answer 1

Specific features of the liquid-in-glass clinical thermometer are: A 'kink' in the glass tube which breaks the mercury as it contracts, storing the highest temperature reading. The glass tube is shaped like a lens to magnify the thin mercury thread. Shaking the thermometer resets the mercury back into the bulb.

Answer 2

The kink slows the flow of mercury whenever it is taken out from mouth so that the temperature can be more accurate. or else, the temperature shown will keep on decreasing when it is taken to a cooler place