Question

2. Explain briefly why the level of mercury changes in a clinical thermometer​

Answer 1

Answer:

Clinical Thermometer

It is a long narrow glass tube with a bulb containing mercury at the end. The normal human body temperature is 37˚C; which can fluctuate between the ranges 35˚C to 42˚C. Hence, the clinical thermometers have the range 35˚C to 42˚C. The level of mercury tells our body temperature in ˚C.

Answer 2

Answer:

Mercury level does not fall on its own, as there is a kink near the bulb to prevent the fall of mercury level. Mercury level falls on its own as no kink is present. Temperature can be read after removing the thermometer from armpit or mouth.

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