Question

what is the principal on which a clinical thermometer is used​

Answer 1

Answer:

A thermometer works on the principle that solids and liquids expand on heating. As the temperature rises, mercury expands causing it to move upwards and depict the temperature. The liquid is often mercury, but alcohol thermometers use a colored alcohol.

Answer 2

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• Solid, liquid and gas show heat expansion. Commonly used clinical thermometer use mercury as its melting point and fluidity, viscosity etc. properties are suitable to measure body temperature. In labs, along with mercury ALCOHOL thermometers are also used.