Question

what is the use of kink in clinical thermometer

Answer 1

Kink in the Mercury thermometer helps to prevents the falling of mercury present in capillary tube into bulb. It ensures that the user takes the correct reading of temperature.

Answer 2

A 'kink' in the glass tube whichbreaks the mercury as itcontracts, storing the highest temperature reading. The glass tube is shaped like a lens to magnify the thin mercury thread. Shaking the thermometer resetsthe mercury back into the bulb.