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Heat — Science STD 7 — Question

Gujarat BoardEnglish MediumSTD 7ScienceHeat1 Mark
MCQ
Why Should We Avoid Keeping The Thermometer In The Sun Or Near Flame?
  • A
    It measures flame temperature.
  • B
    Sun temperature can be measured.
  • ✓
    Automatically it may break.
  • D
    Vapour can create under thermometer.
✓

Answer

Correct option: C.
Automatically it may break.
We know that Mercury is liquid at room temperature and expand with heat. Expansion may apply pressure to break it.

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