Fluid Mechanics Viscosity Question 185
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
Options:
A)$ \frac{1}{2} $
B)$ \frac{3}{8} $
C)$ \frac{2}{3} $
D)$ \frac{3}{4} $
Show Answer
Answer:
Correct Answer: A
Solution:
Fraction of volume immersed in the liquid $ V_{in}=\left( \frac{\rho }{\sigma } \right)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.