Question

A clinical thermometer has a slight bend or kink in its capillary tube why

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.
That's  the reason a person before taking  a new reading must give a sudden shake to the clinical thermometer so that the mercury level comes to normal .
Hence Kink in mercury thermometer plays a important  role without which appropriate reading of temperature is not possible.

....hope this helps.....do rate and mark as brainiest if this helps you.....comment if you have any doubts...don't forget to hit the thanks button below.....

Answer 2

Answer:

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