Physics

Problem

A U-tube contains mercury. The left limb has

20\,\text{cm}

of water above the mercury, while the right limb has a column of oil (density

800\,\text{kg\,m}^{-3}

) of unknown height

x

. The mercury level in the right limb is observed to be

1\,\text{cm}

higher than in the left limb. Calculate the height

x

of the oil column. a)

10\,\text{cm}

8\,\text{cm}

12\,\text{cm}

5\,\text{cm}