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. $\frac { 1 } { 2 }$
• B. $\frac { 3 } { 8 }$
• C. $\frac { 2 } { 3 }$
• D. $\frac { 3 } { 4 }$

Answer 1

Answer: (D)

$\frac { 3 } { 4 }$

Answer 2

As the block moves up with the fall of coin, l decreases,

similarly h will also decrease because when the coin is in

water, it displaces water equal to its own volume only.