question_answer 46)

                  A cubical block of density r is floating on the surface of water. Out of its height L, fraction \[x\] is submerged in water. The vessel is in an elevator accelerating upward with acceleration a. What is the fraction immersed?                

Answer:

                  Fraction of the block submerged in a liquid                 \[\text{=}\,\frac{\text{density}\,\,\text{of}\,\,\text{block}}{\text{density}\,\,\text{of}\,\,\text{water}}\]                 Hence it is independent of the acceleration.