A block of wood is floating in water in a closed vessel as shown in the figure. The vessel is connected to an air pump. When more air is pushed into the vessel, the block of wood floats with (neglect compressibility of water)

Options

A. Larger part in the water
B. Smaller part in the water
C. Same part in the water
D. At some instant it will sink

Answer

C

Explanation

From Pascal’s law, pressure is changing at every point by the same amount. Hence, buoyant force remains the same. So, the part of the block inside water remains the same.