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Measurements — PHYSICS STD 6 — Question

ICSE BoardEnglish MediumSTD 6PHYSICSMeasurements1 Mark
Question
What is the function of the bulb in a thermometer ?
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Answer

The bulb in a thermometer is filled with mercuiy. When the bulb is heated, mercury in the bulb expands and rises up in the capillary tube. The height of the mercuiy gives the reading of temperature.

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