explain the structure of thermometer
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The thermometer is made relatively small so that it is portable and cheap. The liquid is contained in a thin-walled glass bulb. ... The round glass stem around the capillary tube is made thick...
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Explanation:
Thermometer is made of a long narrow glass tube; with a bulb at one end. The narrow tube appears as a continuous silver line; because it is filled with mercury. Mercury is a metal which is in liquid state at room temperature and it readily expands or contracts at the slightest change in temperature.
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