Question

A cubical block is floating in a liquid with half of its volume immersed in the liquid. When the whole system accelerates upwards with acceleration of g/3, the fraction of volume immersed in the liquid will be

• A. 1/2
• B. 3/8
• C. 2/3
• D. 3/4

Answer 1

The correct option is A

1/2

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 system moves upward or downward with constant velocity or some acceleration.