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Thermometry, Thermal Expansion and Calorimetry — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsThermometry, Thermal Expansion and Calorimetry1 Mark
MCQ
The temperature of the sun is measured with
  • A
    Platinum thermometer
  • B
    Gas thermometer
  • ✓
    Pyrometer
  • D
    Vapour pressure thermometer
✓

Answer

Correct option: C.
Pyrometer
(c) Pyrometer can measure temperature from $800^{\circ} \mathrm{C}$ to $6000^{\circ} \mathrm{C}$. Hence temperature of sun is measured with pyrometer.

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