Why is a link present there in a clinical thermometer
Answers
Answer:
A clinical thermometer has a kink in its glass tube just above the bulb containing mercury. The kink is present in the clinical thermometer to prevent the back flow of mercury into the thermometer bulb when the thermometer bulb is removed from the mouth of a patient. So, even when the thermometer bulb is removed from the mouth of a patient, the mercury thread will keep standing at the maximum level reached.
Explanation:
A clinical thermometer has kink whereas a laboratory thermometer does not have because a clinical thermometer is used to measure a human body temperature and laboratory thermometer is used to measure the temperature of objects. If there will be no kink then the mercury will flow back and hence we will not be able to measure the human body temperature.
Hi!
Explanation: There is a kink in the clinical thermometer to prevent the mercury present in the capillary tube from flowing into the bulb. This is to ensure that the temperature recorded is correct.