Answer: The working principle of a mercury thermometer is the expansion of matter on heating.
It is used in households, industrial applications, and laboratory experiments. If the liquid in the thermometer bulb is silver then it might be a non-toxic compound that looks similar to mercury or mercury. In the event of breaking of a thermometer, it should be disposed properly. It is because mercury vapors are released that are harmful to human and ecological health.
Uses of Mercury Thermometer
Following are the uses of a mercury thermometer:
It is used for determining the body temperature.
It is used in power plants and piping.
It is used in Bakeries and for candy making.
It is used in heating and cooling equipment, etc.
Summary:
The working principle of a mercury thermometer is ______.
Out of the given options, the correct answer is ‘Expansion of matter on heating’.
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