Question

why does the mercury level not fall on its own when the bulb of a clinical thermometer is removed from the mouth?​

Answer 1

Answer:

The mercury does not fall or rise in a clinical thermometer when taken out of the mouth because of the presence of kink. It prevents mercury level from falling on its own.

Answer 2

The kink prevent the mercury level from falling down on its own. Due to this the temperature does not decrease immediately after revising clinical thermometer from mouth.