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A vertical U-...

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A vertical U-tube of uniform inner cross-section contains mercury in both sides of its arms. A water column of length 20 cm is poured into one of its arms. Oil of unknown density is poured into the other arm upto a height of 19.5 cm such that the upper surfaces of oil and water are in the same horizontal level. The density of oil is?

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Q. A vertical U-tube of uniform inner cross section contains mercury in both sides of its arms. A glycerin (density =1.3

\frac{g}{c m^{3}}

column of length 10 cm is introduced into one of its arms. Oil of density 0.8

\frac{g}{c m^{3}}

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1300 k g m^{- 3}

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800 k g m^{- 3}

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Q. A vertical U-tube of uniform cross-section contains mercury in both sides of its arms as shown below. Gylcerine column of

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is poured into the other arm until the upper surface of the oil and glycerin at the same horizontal level.
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Q. A U-tube contains water and oil separated by mercury. The mercury columns in the two arms are at the same level with

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12.5 cm

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