A U-tube contains water and oil separated by mercury. The mercury columns in the two arms are at the same level with $10cm$ of water in one arm and $12.5cm$ of oil in the other, as shown in the figure. What is the relative density of oil?

Q. A U-tube contains water and oil separated by mercury. The mercury columns in the two arms are at the same level with $10\text{cm}$ of water in one arm and $12.5\text{cm}$ of oil in the other, as shown in figure. What is the relative density of oil?

Q.

A U tube contains water and methylated spirit separated by mercury. The mercury columns in the two arms are at the same level with 10cm of water in one arm and 12.5cm of spirit in the other as shown in figure. The relative density of the spirit is

Q. A $U-tube$ contains water and methylated spirit separated by mercury. The mercury columns in the two arms are in level with $10.0cm$ of water in one arm and $12.5cm$ of spirit in the other. What is the specific gravity of spirit?

Q. A vertical U-tube of uniform cross-section contains mercury in both sides of its arms as shown below. Gylcerine column of $10cm$ is introduced into one of its arms. Oil of density $0.8g/cc$ is poured into the other arm until the upper surface of the oil and glycerine are at same horizontal level. [${\rho }_{Hg}=13.6g/cc,{\rho }_{glycerine}=1.3g/cc$] The length of oil column is

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 $\frac{g}{c{m}^3}$ is poured into the other arm until the upper surfaces of the oil and glycerin are in the same horizontal level. Find the length of the oil column, Density of mercury =
$13.6\frac{g}{c{m}^3}$