Absorption of ink by a blotting paper is an example of which phenomenon of fluids?
Q.2 (i) Absorption of ink by a blotting paper is an example of which phenomenon of fluids?
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Answer: Capillarity (capillary action).
Blotting paper has very fine pores that act as capillary tubes; ink rises into them because of surface tension (adhesion between ink and paper fibres is greater than cohesion).
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· 28 Oct 2026
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