Quote: When the temperature falls, the column of Mercury breaks at the constriction and cannot return to the bulb, thus remaining stationary in the tube. After reading the value, the thermometer must be reset by repeatedly swinging it sharply to shake the mercury back through the constriction. Unquote.
a lab thermometer did not have a constriction as compared to clinical thermometer. it have a wide range of measurement and usually contains alcohol
It stays at the maximum point so you get an accurate reading
It stays at the maximum point so you get an accurate reading
Mercury does not fall or rise in a clinical thermometer when taken out from the mouth because of the KINK present in it.
constriction is one part of the thermometer that has like a hill
Because there is a constriction to prevent the indicator fluid falling to allow the maximum temperature to be read.
The constriction prevents the mercury from returning back to the bulb when the thermometer is removed from a particular body.
A clinical thermometer can only measure human body temperatures since it can measure no less than 35 degrees celcius and no more than 42 degrees celcius. An ordinary thermometer can measure and object or substance at any temperature. A clinical thermometer can only measure human body temperatures since it can measure no less than 35 degrees celcius and no more than 42 degrees celcius. An ordinary thermometer can measure and object or substance at any temperature.
measture a tempreture
A feature that belongs to a clinical thermometer is a high level of accuracy, typically measuring temperature within a narrow range that is suited for detecting subtle changes in body temperature.
So they can read the thermometer
Clinical Thermometer