Question

The kink in the clinical thermometer helps in retaining thethe mercury column.

• A. heat absorbed by
• B. temperature of
• C. level attained by

Answer 1

The correct option is C level attained by

When heat flows from the hot body to the thermometer, the mercury in the bulb starts expanding and it reaches a certain height. Unlike the lab thermometers, clinical thermometers have a kink which helps in maintaining the level attained by the column even when the contact with the body is broken. This gives us ample time to note the readings after the thermometer is removed from the body.