Question

A cubical block is floating in a liquid with one fourth of its volume immersed in the liquid. If whole of the system accelerates upward with acceleration $g/4$, the fraction of volume immersed in the liquid will be?

• A. $1/4$
• B. $1/2$
• C. $3/4$
• D. $2/3$

Answer 1

The correct option is B $1/2$

The fraction of volume immersed in the liquid will be same as before i.e $=\frac{1}{2}$.

The fraction of volume immersed in the liquid

$V_{in}=\frac{\rho }{\sigma }V$

i.e. it depends upon the densities of the block and liquid. So there will be no change in it if the system moves upward or downward with constant velocity or some acceleration