A piece of wood is floating in water kept in a bottle. The bottle is connected to an air pump. Neglect the compressibility of water. When more air is pushed into the bottle from the pump, the piece of wood will float with

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.