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Explanation: The absorption of ink by blotting paper involves capillary action phenomenon because the blotting paper is a thin and a smooth paper which allows a little thicker liquids like ink to absorb.
β Correct Answer: (B)
The level of the liquid in the two vessels are at the same height.
Explanation: Siphon is a tube bent to form two legs of unequal length by which a liquid can be transferred from a reservoir and then down to a lower level of it. Siphon will fail to work if, the level of the liquid in the two vessels are at the same height.