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प्रश्न
Why coffee runs up into a sugar lump (a small cube of sugar) when one corner of the sugar lump is held in the liquid?
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उत्तर
Dip the comer of a sugar cube in coffee, and get the whole cube coffee-flavoured due to “capillary action”.
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संबंधित प्रश्न
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A) 10 R
B) R/10
C) R/100
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Is surface tension a vector?
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(ρ > d, g = acceleration due to gravity, T = surface tension)
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