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T2 CH1 Heat and Temperature — Science STD 7 — Question

Tamilnadu BoardEnglish MediumSTD 7ScienceT2 CH1 Heat and Temperature2 Marks
Question
Why do we jerk a clinical thermometer before we measure the body temperature?
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Answer

The jerk to the thermometer will allow the mercury level to flow into the bulb so that the mercury level is below the normal temperature.

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