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Class 11Physics1 Thermal Properties of Matter: Thermometry, Expansion and CalorimetryThermal Expansion for Solid

The volume of the bulb of a mercury thermometer at $0^\circ C$ is $V_0$ and the cross-section of the capillary is $A_0$. The coefficient of linear expansion of glass is $a_g$ per $^\circ C$ and the coefficient of cubical expansion of mercury is $\gamma_m$ per $^\circ C$. If the mercury just fills the bulb at $0^\circ C$,what is the length of the mercury column in the capillary at $T^\circ C$?

  • A
    $\frac{V_0 T (\gamma_m - 3a_g)}{A_0 (1 + 2a_g T)}$
  • B
    $\frac{V_0 T (\gamma_m - 3a_g)}{A_0 (1 + 3a_g T)}$
  • C
    $\frac{V_0 T (\gamma_m + 2a_g)}{A_0 (1 + 3a_g T)}$
  • D
    $\frac{V_0 T (\gamma_m + 3a_g)}{A_0 (1 + 2a_g T)}$
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Class 11 Questions

Class 11

Physics Questions

Chapter

1 Thermal Properties of Matter: Thermometry, Expansion and Calorimetry

Subtopic

Thermal Expansion for Solid

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