Physics 5054 · O Level · Thermal expansion of solids, liquids and gases

Thermal expansion of solids, liquids and gases — practice question

For a liquid-in-glass thermometer, the liquid column measures 2.0 cm in length at $0^{\circ}\text{C}$ and becomes 10.0 cm longer when it is heated to $100^{\circ}\text{C}$. Starting from P, what is the length of the liquid column at $30^{\circ}\text{C}$?

  • A2.3 cm
  • B3.0 cm
  • C5.0 cm
  • D7.0 cm

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