1.

Melted wax in a candle rises up to the wick due to which of the following phenomenon?1. Viscosity2. Density3. Capillarity4. Surface tension

Answer» Correct Answer - Option 3 : Capillarity

The correct answer is Capillarity.

  • Capillarity- Capillary action is the ability of a liquid to flow against gravity in a narrow space such as a thin tube. 
    • Surface tension is an important factor in the phenomenon of capillarity.
    • If a capillary tube is dipped in a liquid, liquid ascends or descends in the capillary tube because of capillarity.
    • Thus, the melted wax in the candle rises up to the wick due to capillary action.
    • This spontaneous rising of a liquid is because of two opposing forces.

  • Cohesion –These are the attractive forces between similar molecules or atoms
  • Adhesion –These are the attractive forces between dissimilar molecules or atoms


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