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Heat — Science STD 7 — Question

Gujarat BoardEnglish MediumSTD 7ScienceHeat1 Mark
MCQ
To measure high temperatures $ >2500^\circ C,$ we use:
  • A
    Constant volume gas thermometer
  • B
    Thermocouple
  • C
    Resistance thermometer
  • ✓
    Pyrometer
✓

Answer

Correct option: D.
Pyrometer
 Pyrometer can measure temperature ranging from $50^\circ C$ to $4000^\circ C$
All other measuring devices are used for temperatures below $2500^\circ C$

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