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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
If temperature scale is changed from ${ }^{\circ} \mathrm{C}$ to ${ }^{\circ} \mathrm{F}$, the numerical value of specific heat will
  • A
    Increases
  • ✓
    Decreased
  • C
    Remains unchanged
  • D
    None of the above
✓

Answer

Correct option: B.
Decreased
(b) $Q=m \cdot c \cdot \Delta \theta \Rightarrow c=\frac{Q}{m \cdot \Delta \theta}$In temperature measurement scale $\Delta \theta^{\circ} F>\Delta \theta^{\circ} C$ so $(c)_{{ }^{\circ}} F<(c)^{\circ} \mathrm{C}$.

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