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The ratio of the surface tension and density p of liquid 1 and 2 are 1:2 and 1:4 respectively. Equal amount of the two liquids is poured into two identical tubes. What will be the ratio of the rise in the liquid level in the two tubes?

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Answer:

The ratio of the rise in the liquid level in the two tubes will be 4:1.

Explanation:

Density is defined by the equation bellow:

p = m / V

m: mass

V: volume

p₁ = m₁/V₁

p₂ = m₂/V₂

p₁/p₂ = m₁/V₁ x V₂/m₂ = 1/4

equal amounts: m₁ = m₂

V₂/V₁ = 1/4

The ratio of the rise in the liquid level in the two tubes will be 4:1. This means that the liquid one has a volume 4 times bigger than the liquid 2.

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