Question : Oil raises the wick in a lamp because
Option 1: Oil is very light.
Option 2: Of the diffusion of oil through wick
Option 3: Of the surface tension phenomenon
Option 4: Of the capillary action phenomenon
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Correct Answer: Of the capillary action phenomenon
Solution : The answer is the capillary action phenomenon .
The capillary action phenomenon causes oil to rise in the lamp's wick. Molecules in this liquid flow through the narrow gaps in a wick without the assistance of an outside force. The intermolecular interactions between solid and liquid molecules facilitate this movement.
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