Question

A $U-$tube of uniform cross section is partially filled with a liquid $\left(I\right)$. Another liquid $\left(II\right)$ which does not mix with liquid $\left(I\right)$ is poured into one side. It is found that the liquid levels of the two sides of the tube are the same, while the level of liquid $\left(I\right)$ has risen by $2cm$, If the specific gravity of liquid (I) is $1.1$, the specific gravity of liquid $\left(II\right)$ must be

• A. $1.12$
• B. $1.1$
• C. $1.05$
• D. $1.0$

Answer 1

Answer: (B)

$1.1$

Since both liquid levels are same.

We conclude

$h{\rho }_{1}g=h{\rho }_{2}g\Rightarrow {\rho }_1={\rho }_2=1.1$