In an oil lamp, the oil rises up in the wick due to?

Correct answer: A. Capillary action

  • A. Capillary action
  • B. Atmospheric pressure
  • C. Viscosity of oil
  • D. Change in temperature

Explanation

Narrow spaces between the fibres of a wick pull oil upward through capillary action, caused by adhesion to the fibres and cohesion within the oil.

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